12 best mechanical filter media

Product description

Fluval Pre-Filter Media is designed to capture solid waste before it reaches other media. This prevents premature clogging of finer filters and extends their life, reducing media replacement frequency. Fluval Pre-Filter consists of inert, solid ceramic rings used to trap large and medium solid particles before they clog the finer sieves of the modules above. The diversified water flow allows establishment of biological activity on the surface of the rings, adding to the overall biological action on ammonia and nitrite. Fluval Pre-Filter Media is ideal for medium and coarse filtration, and suitable for both freshwater and marine aquariums.

Fluval first broke onto the aquatic scene in 1975 by introducing the world’s first 3-stage filter with synchronous motor technology – a landmark breakthrough that is still applied in the industry today. Since then, Fluval has built a legacy around this pioneering spirit, relentlessly adapting in a changing world to launch innovative aquarium products that remain at the forefront of technology, and which set the bar in quality, style and functionality. Above and beyond its manufacturing role, Fluval prides itself on its charitable and educational efforts that give back to the fishkeeping community, whether it means helping to fund the protection of wild coral reefs or jumping on a plane to document endangered fish species halfway around the world. Fluval’s mission is not just about building products that mimic the natural world, but inspiring aquarists of all skill levels to enjoy and respect the hobby for generations to come.

• Mechanical filter media prevents finer filter media from clogging
• Solid ceramic rings trap large and medium solid particles
• Works to prevent clogging of finer filter modules
• Helps reduce the replacement frequency of filter media
• Ideal for medium and coarse filtration in freshwater and saltwater aquariums

User questions & answers

Question:	does this come with a bag to hold the pieces in? if not, dostores sell the bags seperate
Answer:	No, the light cannot be changed. Hoewever, Fluval says the UV light lasts up to 3.5 years. Fluval also provides a 2 year warranty from the date of purchase. Hope this helps!
Question:	For those of use who don't know about filtration, someone please explain how to use this and other filter media. Where to place it and now to use it
Answer:	No, to fast water flow. made for only up to 100 gallon tank. Hope they come out with another model this size is great but only for the smaller units 06/07
Question:	Can someone provide the estimate deminsion, measurement of one cermaic bio-piece? I will be using this in a small filter. Thanks
Answer:	Just one tube. Not the siza of fx6 filters. And mine was working just 2 min, then red light on. I dont recomand this article at all
Question:	if you were to get filter bags how many would this fill? and how often would you rinse and change the media? would this media work in the fluval V
Answer:	made for the fluval 06 and 07 . hose if same size will work . Will not fit larger hose like FX models

Product description

Fluval Quick-Clear Water Polishing Pads are uniquely designed to fit Fluval Canister Filters. These extra thick, micro-fine polyester pads effectively trap micro particles and debris as water passes through. Fluval Water Polishing Pads are ideally used when cloudy water occurs or after tank maintenance. Rinse the pad thoroughly before inserting in the aquarium filter, and it fits in the upper media basket of your Fluval 104/204 and 105/205 canister filters. Pads should be replaced every 3 months, or sooner if the pad becomes clogged and fi¬lter flow-rate diminishes.

Fluval first broke onto the aquatic scene in 1975 by introducing the world’s first 3-stage filter with synchronous motor technology – a landmark breakthrough that is still applied in the industry today. Since then, Fluval has built a legacy around this pioneering spirit, relentlessly adapting in a changing world to launch innovative aquarium products that remain at the forefront of technology, and which set the bar in quality, style and functionality. Above and beyond its manufacturing role, Fluval prides itself on its charitable and educational efforts that give back to the fishkeeping community, whether it means helping to fund the protection of wild coral reefs or jumping on a plane to document endangered fish species halfway around the world. Fluval’s mission is not just about building products that mimic the natural world, but inspiring aquarists of all skill levels to enjoy and respect the hobby for generations to come.

• Mechanical filter media effectively traps micro particles and debris
• Durable, extra thick, micro-fine polyester pads
• Provides crystal clear aquarium water
• Suitable for freshwater or saltwater aquariums
• Includes 3 water polishing pads

User questions & answers

Question:	Can I use bio foam in a fluval
Answer:	Its a good practice to install more than one. Check valves keep the water from going back into the well after the pump shuts off. These should not affect your CSV14 if you have it down stream of the checks.
Question:	will it fit in Fluval
Answer:	https://cyclestopvalves.com/pages/contact-us
Question:	Will this fit the
Answer:	Yes the water will flow both ways through the Cycle Stop Valve. The valve doesn’t act as a check valve and will not keep the system pressurized once the pump stop pumping. To keep water from draining back make sure that you have a working check valve on the system. There is usually one found down in the well by the pump. Which will be more than sufficient with the CSV.
Question:	Can i cut this pad down to fit in a fluval aquaclear power 50 filter
Answer:	approximate size is 3x4 inch

Product description

FEATURE:

Each set has 3 foams ( 1 x Coarse, 1 x Medium, 1 x Fine), the combination of triple density sponges can traps both large and fine particles- working together to produce crystal clear water in your aquarium.

Good for both mechanical and biological filtration – Special egg crate design offers more surface area for filtration.

Can be cut to fit and used as a pre-filter for any aquarium or pond filter, sump, wet/dry, canister, power filter etc. or your HMF DIY project.

Includes: 1x coarse (Blue) 20PPI, 1x medium (Green) 30PPI, 1x fine (Black) 40PPI.

Dimension: 17" Lx 11"W x 1/2"-1"H.



DIMENSION:

17" x 11" x 1"



INCLUDES:

1x coarse (Blue) 20PPI

1x medium (Green) 30PPI

1x fine (Black) 40PPI

• Each set has 3 foams ( 1 x Coarse, 1 x Medium, 1 x Fine), the combination of triple density sponges can traps both large and fine particles- working together to produce crystal clear water in your aquarium.
• Good for both mechanical and biological filtration – Special egg crate design offers more surface area for filtration.
• Can be cut to fit and used as a pre-filter for any aquarium or pond filter, sump, wet/dry, canister, power filter etc. or your HMF DIY project.
• Includes: 1x coarse (Blue) 20PPI, 1x medium (Green) 30PPI, 1x fine (Black) 40PPI.
• Dimension: 17" Lx 11"W x 1/2"-1"H.

• POPULAR CHOICE - Our Classic blue and white bonded filter pad is a popular multipurpose filter media perfect for freshwater or saltwater aquariums. The filter pads' resilient fibers trap floating debris to help KEEP YOUR AQUARIUM WATER CRYSTAL CLEAR; the open fiber construction promotes water flow and prevents premature clogging.
• CUT TO FIT - Made in the USA! Our ClassicBlue aquarium filter pads can easily be cut to fit most filters and WILL SAVE YOU EVEN MORE MONEY over purchasing ready-made pre-cut filter material. Our poly filter pad is PERFECT FOR FRESHWATER OR SALTWATER aquariums as a prefilter for wet/dry filters, sumps, canister filters, aquaponics system, and much more. You will receive a 12 inch by 12 Feet by 3/4 inch thick filter pad.
• HIGH QUALITY AND DURABLE - Our aquarium filter floss is CONSTRUCTED OF DURABLE POLYESTER FIBERS bonded by our special resin which gives the media the STRENGTH TO LAST TWICE AS LONG as the rest. Blue pigment is added to our POLY FILTER PAD to holdfast resin to keep the color on the pad and out of your aquarium water longer than other filter media pads.
• IMPROVE WATER QUALITY- Place our filter floss aquarium pad in flowing water to trap uneaten food, waste, decaying plants, detritus, and other coarse to small floating particulates from the water. Changing filter media regularly will INCREASE WATER QUALITY BY REMOVING SOLID ORGANIC COMPOUNDS before they continue to break down and add additional nutrients (which can increase algae growth) to the water in your fish tank.
• SAVE MONEY - Use this in place of expensive filter pad. Combine with our high quality activated carbon to do everything a branded filter pad can do for much less!

User questions & answers

Question:	where is the white
Answer:	Only aware of fitment with my Mark V Jetta SE 2.5 liter, made in Mexico. Check/confirm on the Amazon website for your match. If you don't know how to find a match, let someone put it in for you.
Question:	Will this product float and remain floating, not become waterlogged over time
Answer:	It said the same thing about my 09 2.5L and it fitted my car.
Question:	What size microns does this filter
Answer:	I replaced the filter on my Saab last summer and, as such, I don't recall whether it had the gaskets or not. However, I did not have to get anything else to change it, so it had everything I needed. It's still working great, too - it's got a dent, but the car still starts and runs well after about 11,000 miles. Sorry - that's the best information I can provide.
Question:	Whats the difference between this and your white density roll? Is this better
Answer:	The answer is counter-intuitive. It takes LESS power. The biggest savings, however, is the reduction in wear and tear on your pump from less start cycles. If you get an extra fie years out of a pump that will cost up to $2000 to replace, that is a considerable savings in and of itself, not to mention the hassle!

Product description

When you receive your filter pad, simply cut it to your custom desired size and they are ready to use. It can also be used as a prefilter if desired. This product is suitable for sea water tanks, fresh water tank, water plants cylinder, the size of the free cut. You can spend more time admiring your fish, And less time scrubbing your tank.

• Size: 9" x 9" x 1",(2 pcs),Suitable thickness makes it easier to cut.
• Sponge filter provide both mechanical and biological filtration,Trap large bits of waste,And will not get clogged easily.
• Can be cut to fit your filters.Used for any aquarium or pond filter.
• Bio Sponge Filter Media Pad is aquatic pet safe and are made without dyes. Suitable for freshwater or marine aquariums
• Regular cleaning! can be reused after cleaning.it is durable.

User questions & answers

Question:	Do i just place it in the aquarium? Will it float tobthevtop
Answer:	I use this for a Sprinter 2500 with 3.0L V6 diesel engine. The line you referred to is the drainage and has a rotating valve at the end. Screwed in is closed position, screwed out in open position, just like the one you have now, but shorter and built-in (non removable) . Look at your filter...if it has a 5 pin connector, then provably will fit. My original filter was 820/14. I've been using this one for 6 months now with no issues. Hope that helps.
Question:	Are these 1-1/4 thick
Answer:	Yes this fits late model years 3.0l diesel make sure and check connector 5 pinS or 3 pins
Question:	I need 4 ft by 4ft square 3” or 4” high density foam for outside koi pond filter. Do you carry or know where I can get them
Answer:	Not sure, confirm with the actual filter. There are two filters that look alike but they have a 6.6 or 4 psi stamp on them. Look for the stamp in the actual filter. If it says 4 bar, this is the filter for you. If it says 6 or 6.6, you have to buy the 69/1 filter. Hope it helps.
Question:	Would this be considered coarse
Answer:	The WK69 filter is the 6.6bar filter, the WK69/2 is the 4bar filter. Which one you will require depends on which engine you have. Check your filter first, as they should not be interchanged.edit - I'm fairly sure that for the regular 2.5L 5 cylinder engine you need 4 bar, and for the 2.0T (turbocharged) you need a 6.6bar. I know that holds true with my 2007 VW Rabbit (2.5L), and that the 2.0T GTI requires the 6.6bar, but I can't guarantee that it's always true.

Product description

Have you ever bought a filter which is not durable and too thin?

If your answer is yes, it is time to change to Koral-Pro Filters!

Do you wonder why? Here are the answers:

Thicker and stronger! This durable filter has a strong material and it has 1.25 to 1.75 inch thickness.

Washable and reusable multipurpose filtration! This filtration material is also washable and easy to clean with a garden hose. It can be easily rinsed and reused many times.

Cut-to-fit model saves you money! You can easily adjust the size of our filter to use it in your filtration system. It will save you money when you buy in bulk.

Koral -Pro Filter is designed for Koi Pond and other outdoor water garden applications.

• ☆ COMPATIBLE WITH KOI PONDS AND AQUARIUMS; Our blue bonded and dye-free bonded filter exclusively made for fresh and salt water koi ponds and aquariums. Our filter pad provides great mechanical filtration while providing important benefits for your ornamental garden pond and your aquarium.
• ☆ CUT-TO-FIT ROLL AND SAVE MONEY; Our proven filter comes as a roll and you can easily cut to suit your needs. Buying in bulk saves you lots of money since you can get the right size for your filtration system. Custom cut-to-fit almost any size pond filter, waterfall filtration, circulation system or aquaponics..
• ☆ REUSABLE; Our durable design allows our filter to resist warping, breaking and tearing. It is easy to clean. You can use our filters repeatedly. Our washable and reusable filter is perfect for Koi Ponds, Aquariums, Water Gardens!
• ☆ CRYSTAL-CLEAR WATER; It has open fiber construction which allows for high volumes of water to flow through pad while producing crystal-clear water. Perfect blend of large and small fibers creates mechanical filtration to keep your water clear for extended period of time. Our filter is proudly MADE IN USA by Koral Filters!
• ✅ RISK-FREE SATISFACTION GUARANTEE; We are committed to our 100% CUSTOMER SATISFACTION so if you find that you are not 5-STAR HAPPY with us or our products, please contact us and we will do whatever it takes to quickly ensure you are 100% satisfied.

User questions & answers

Question:	Is this washable and reusable? if so, is it easy to clean? i am wanting to use in a diy small pond skimmer/prefilter box
Answer:	Although it works fine in filtering, almost to good for my application, I find this product is rather suited to one maybe two use. I have cleaned to reuse but it compresses quite a bit after wet and clogs up quickly with my pond, 3 days. I have 3 large Koi in 350 gallon pond that gets a lot of debris. This filter media reminds me what I used for indoor aquariums. I went back to using large cell foam.
Question:	what is the micron size particle removal
Answer:	Not sure but I use this at the top layer before the water goes back into my pond and it's fantastic for me. holds a lot and I rinse them and reuse. Love them. I use wow.thepondguy.com for a lot of education as well.
Question:	what are the measurements for this pad...length 10 ft.....width?.....thickness
Answer:	10' long, 12" wide, 1.5" thick. Good value - washable and works well in my outdoor pond.
Question:	I am looking for a replacement filter for my pool cover pump. Do you think this would work? Whats the difference between the blue and the white? v/r
Answer:	The white collects larger particles. This one collect smaller gunk and particles that get thru the white one and works great getting out sludge. I use both. Together they keep my pond nice and clean. I have never tried using the blue alone but I guess some people do and it works great for them.

Product description

This dual sided filter media consists of two layers, with the white layer being more coarse for larger particles and the pink layer which is finer to catch the smaller remaining particles.

• Over 30 years of proven customer satisfaction with our pink filter product.
• No chemicals used in production! Safe for all fresh or saltwater fish, tanks & ponds.
• Easy to cut with scissors to any size needed.
• Proudly Made in the USA by an American Company
• Approximately 1" Thick Uncompressed. May Vary Between 1/2" and 1" Due to Shipping

User questions & answers

Question:	What is the difference between the pink, blue and green filter media
Answer:	The filters we send out have the cap on the vent hose outlet and the cap has the clip. We don't sell it as a spare part because it comes with the filter. We're not sure how we would get one to you. If you search Amazon ASIN #: B007JY6WFW, that is a drain plug and our least expensive item on Amazon. If you order it we will ship you the cap and clip. You would have to choose to buy it from Small Fleet Parts since several other sellers offer that same part. If you do order it send us a note that you want the cap.
Question:	How is the pink layer bonded to the white layer
Answer:	This fits my 2015 Sprinter with 3.0L V6 and 5 pin connector on the filter.
Question:	Pink side up or down
Answer:	There is no hose on the filter. Wath you see is a wire. Just two fitting to attach the hose to.
Question:	What are the micron sizes for the pink and white layers
Answer:	Yes the sensor is included as it is not removeable

Product description

sponge filter, turtle tank filter, aquarium filter media, FilterFirst Premium Dual Density Filter Pad, aquarium Filter Pads, mechanical filtration, turtle tanks, terrariums,

• CUSTOMER AND PROFESSIONALS CHOICE - Our true DUAL DENSITY FILTER ROLL is the TOP CHOICE for cut to size aquarium filter material. Our NEW 3rd generation dual layer aquarium filter pads are even thicker than before. The top layer's open fiber construction traps LARGER PARTICLES while the bottom layer's dense fiber network TRAPS FINE PARTICLES - working together to produce crystal clear water in your aquarium.
• CUT TO FIT - Made in the USA! Our FilterFirst PREMIUM BONDED FILTER ROLL can easily be cut to any size needed and WILL SAVE YOU EVEN MORE MONEY over purchasing ready-made, pre-cut filter material. Our poly filter pad is PERFECT FOR FRESHWATER OR SALTWATER aquariums as a prefilter for wet/dry filters, sumps, canister filters, aquaponics system, and much more. You will receive one 12 inch by 72 inch by 3/4 inch thick filter pad.
• HIGH QUALITY AND DURABLE - Our filter floss aquarium pad is CONSTRUCTED OF DURABLE POLYESTER FIBERS bonded by our special resin to give it EXCEPTIONAL STRENGTH. The lower section of our pad is made by taking layers of resilient fibers through a process to tighten and entangle the fibers into a dense network producing a thin firm layer, perfect for removing fine debris. Our premium pads' consistent, reliable design gives SUPERIOR FILTRATION.
• IMPROVE WATER QUALITY- Place our FilterFirst DUAL ACTION POLYFILTER PAD in flowing water with the open weave side up to trap uneaten food, waste, decaying plants, detritus, and other large and fine floating particulates from the water. Changing filter media pads regularly will INCREASE WATER QUALITY by removing solid organic compounds before they continue to break down and add additional nutrients (which can increase algae growth) to the water in your fish tank.
• ENVIRONMENTALLY FRIENDLY - Our aquarium filter media roll is completely safe for all fish and other aquatic life. FilterFirst is made without dyes.

Product description

Fluval Quick-Clear Water Polishing Pads are uniquely designed to fit Fluval Canister Filters. These extra thick, micro-fine polyester pads effectively trap micro particles and debris as water passes through. Fluval Water Polishing Pads are ideally used when cloudy water occurs or after tank maintenance. Rinse the pad thoroughly before inserting in the aquarium filter, and it fits in the upper media basket of your Fluval 306/406 and 307/407 canister filters. Pads should be replaced every 3 months, or sooner if the pad becomes clogged and fi¬lter flow-rate diminishes.

Fluval first broke onto the aquatic scene in 1975 by introducing the world’s first 3-stage filter with synchronous motor technology – a landmark breakthrough that is still applied in the industry today. Since then, Fluval has built a legacy around this pioneering spirit, relentlessly adapting in a changing world to launch innovative aquarium products that remain at the forefront of technology, and which set the bar in quality, style and functionality. Above and beyond its manufacturing role, Fluval prides itself on its charitable and educational efforts that give back to the fishkeeping community, whether it means helping to fund the protection of wild coral reefs or jumping on a plane to document endangered fish species halfway around the world. Fluval’s mission is not just about building products that mimic the natural world, but inspiring aquarists of all skill levels to enjoy and respect the hobby for generations to come.

• Mechanical filter media effectively traps micro particles and debris
• Durable, extra thick, micro-fine polyester pads
• Provides crystal clear aquarium water
• Suitable for freshwater or saltwater aquariums
• Includes 6 water polishing pads

User questions & answers

Question:	On the photos the box says 2 inserts or is it just 1 insert
Answer:	I don't think so, the 407 impeller looks longer than the 406 impeller
Question:	Is this the same as Quick Clear
Answer:	Not sure. If it is similar in size it could work. I once used a smaller propeller and it worked better. Sometimes you have to try it and see.
Question:	can i use these in a hob filter aqua clear
Answer:	Yes it will. The 306 & 406 impeller will fit either filter
Question:	Will it fit in fluval
Answer:	Hope. The ceramic piece it spins on as well as the impeller cover are different.

Product description

JIH Aquarium Filter Media Sponge Pad Foam

• Cut-To-Fit filter media Bio Sponge. Can be cut to fit your filters.
• This Bio Filter Sponge Media has a much larger inner surface area for beneficial biological capacity, and produces both mechanical and biological filtration.
• The reticulated structure also provides better flow rate of water and less chance of clog.
• Regular cleaning! can be reused after cleaning.
• Dimension: 19x9.5x0.78 inches; PPI: 30 Coarse Pad

Product features

Highly-active granular activated carbon

CHADA AQUA KEY is a highly-active granular activated carbon (GAC) manufactured from selected grades of bituminous coal and designed for use in aquarium applications.

Used in aquarium applications

CHADA AQUA KEY provides superior adsorption properties for the removal of dyes, tannins, odor, medicinal residuals, and toxic organics from aquarium water

Good for plants / terrariums

ADD CHADA AQUA KEY ACTIVATED CHARCOAL near the bottom of your terrariums to help decaying organic material releases unpleasant gasses and toxins that can be harmful to your plants ( and your nostrils), reducing chances of harmful rot in your terrarium and also reducing unwanted molds and mildew.

Product description

From industry firsts to industry standards, Marineland products are designed with both performance and style in mind. We push precision and power beyond the expected and listen to our loyal customers to make our products even better. We do this because at the heart of our innovative spirit is a desire to help hobbyists everywhere do more, create more and, most of all, enjoy more. So whatever your customers are passionate about — freshwater or saltwater, big or small, beauty or science — help them make their aquarium their own. Make it Marineland. Marineland Filter Foam for Canister Filters provides a large surface area for trapping particulate debris and enhances biological filtration. The filter foam can be rinsed and reused once every three weeks for a total of nine weeks. Remember to change your filter cartridge once a month or when you see a reduction in water flow, as well as change 25% of the water monthly.

• FILTER FOAM Screens out aquarium dirt and debris
• BIOLOGICAL FILTRATION Provides a large surface are for trapping particulate debris
• COMPATIBILITY Fits Marineland C-Series and Magniflow 160 and 220 Canister FiltersFOR BEST RESULTS Rinse pad monthly replace every 6 months
• MARINELAND FILTRATION PRODUCTS Count on Marineland brand for the most reliable technically advanced aquariums and accessories on the market
• Age Range Description: All Ages
• Included Components: Marineland Filter Foam For C-160 &Amp; C-220 Rite-Size S (2 Pk)
• Screen Out Dirt and Debris

User questions & answers

Question:	Is this a coarse, medium or fine foam
Answer:	Yes it will. I have the 6022 and these fit perfectly.
Question:	I have the marineland 10 gallon tank kit. what number filters do i need to replace old filter? 160? 220? or
Answer:	It fits, but the reading will be 0.5-1 degree off.
Question:	What PPI does this foam have
Answer:	Yes this fuel filter will work for your Winnebago as long as the vehicle dose not have a fuel filter heater
Question:	My filter came with ceramic, bio balls, activated carbon, and polishing pad. Would this foam be replacing one of those or used along side
Answer:	Yes, this item will fit a 2016 Mercedes sprinter 3500 diesel v6.

Product features

BOSWELL's Aquarium Pool Pond and Filtration Set-Up

BOSWELLS 2-stage Trickle Tower filtration system is great for filtering ponds, gardens, and aquariums that hold 400-2,600 US gallons with a normal fish load. Its multiple-stage mechanical and biological filtration is completely set up to handle any of your ponds or aquariums applications and will keep your pets nice and healthy.

Hose Adapter for Inlet

No pluming needed, simply plug-in the water pump and start filtering. So there's no need for cutting, gluing, or even measuring. We made it our business to make installing this filter as simple and easy as possible.

Pipe inlet size: .5"/ .75"/1"

Mechanical Filtration System

As part of the mechanical filtration system, the spray bar is responsible for distributing the water evenly over the filter media cleaning up uneaten food, waste, and polishing the water.

Biological Filtration

The middle and bottom-most layer is home to the beneficial organisms that help maintain good water chemistry and lower the harmful Nitrates in the water, keeping your fish happier and healthier.

Large 3-Layer Filtration System

In each tower there are removable layers that can be added or removed to accommodate for a larger biological load from your aquarium or pond.

• Filter Media, Pads, and Pump not included

XL 3 -Layer Filtration System

Try our XL filtration system designed to hold more biological media and filter at a higher rate.

• Filter Media , Pads, and Pump are not included

Reinforced Walls

When filled with water the reinforced walls do not bend or bulge from the weight of water inside.

Double Outlet T-Drain

The T-Drain out flow allows for better mixture of air into the water and in emergencies becomes a full syphon, draining the bottom layer quickly to its normal water level.

• 2x 1.5 inch outlet drains

Product description

Key Features：

Dimension: 23" Lx 12.25"W x 2"H; PPI: 20 Coarse Pad

The open cell sponge has a much larger inner surface area for beneficial biological capacity, and produces both mechanical and biological filtration.

This filter pad can be cut to fit and used as a pre-filter for any aquarium or pond filter, sump, wet/dry, canister, power filter etc. or your HMF DIY project.

The reticulated structure also provides better flow rate of water and less chance of clog.

The size of pores is measure in pores per inch (PPI). The sponge with higher PPI has more pores in it. More pores means larger biological filtration capacity but with less water flow through rate and needs to be cleaned more often. It is recommended to use combination of sponge with difference PPI to get the best result.

Specification:

Size: 23" x 12.25" x 2"

PPI: 20 Coarse

Color: Blue

Includes:

1 piece of open cell sponge

• Dimension: 23" Lx 12.25"W x 2"H; PPI: 20 Coarse Pad
• The open cell sponge has a much larger inner surface area for beneficial biological capacity, and produces both mechanical and biological filtration.
• This filter pad can be cut to fit and used as a pre-filter for any aquarium or pond filter, sump, wet/dry, canister, power filter etc. or your HMF DIY project.
• The reticulated structure also provides better flow rate of water and less chance of clog.
• The size of pores is measure in pores per inch (PPI). The sponge with higher PPI has more pores in it. More pores means larger biological filtration capacity but with less water flow through rate and needs to be cleaned more often. It is recommended to use combination of sponge with difference PPI to get the best result.

User questions & answers

Question:	Is it necessary to use coarse, medium and fine grades? Would prefer not to have to buy all three
Answer:	No it's not necessary but can be preferred. I've found running just the fine requires it to be replaced much more frequently while just the coarse allows fine particles to clog other media used or allows them to pass back into tank. If I was gonna run just one I would use medium and clean once a month or so depending on tank stocking. I personally use all 3 in a sump and only rinse the fine every 2 months the coarse and medium get cleaned every 6 months
Question:	Does it absorb water
Answer:	Yes
Question:	What is the lifespan of this sponge? How many years? Thank you
Answer:	Well after asking around and doing some research it seems they can last up to 9yrs in shrimp setups without being cleaned for fish I’m sure it will be significantly less. I have had mine going in 3 setups for shrimp almost a year now and have had to do no maintenance one them what so ever! I hope that is helpful
Question:	Are both of these black and green ones rated at 30 ppi small enough gauge for shrimp tanks so shrimp won't get sucked into the pores of the sponge
Answer:	Hello, the green one is of 30 PPI while the black one is of 45 PPI, thank you.