They last for years! Measure the height of your aquarium and cut the pipe a little shorter than the height of the aquarium. With that understanding, bubbling air up through the lift tube will provide plenty of circulation. Drop-in your air stone and plug the air pump and beautifully your filter starts working. If you’ve been following my rambling explanations here, you’ll see that basically I’m thinking of taking the surface area of the sponge or rings or what-have-you from OUTside the lift tube and putting that INside the lift tube. Instead of a sponge, alternatively, you can use a small mesh bag to contain some other safe and finely porous material. I bought the sponge filter, pictured above, from http://www.angelsplus.com/FiltersSponge.htm and I can say that they are very inexpensive and seem to be made of superior material. Insert the end pupe into the home in the sponge and attach the other end of the airline tubing to the air pump. Coarse sponge pad is a replacement for throw away cartridges in aquarium filters. I don’t want to possibly bias my reader against sponge filters, but a sponge filter is much the same as an undergravel filter, both of which work very well. Get a square sponge and hang it at one corner of your aquarium. Here’s another DIY sponge filter guide, you will need. Also likely to be unsuitable are “organic” sponges or cellulose sponges, which are not likely to be sturdy enough to keep from breaking down. Powkoo Sponge Media Filter, Bio Sponge Filter Media Pad, Cut-to-Size Foam for Aquarium Fish Tank Pond Canister Filters 4.4 out of 5 stars 231 £12.99 £ 12 . This sponge filter is among the easiest DIY sponge filters out there because it is made from already drilled and carbonated sponge, gravel filter tubing, PVC pipe, and air tubing. Fit the air tubing to the air pump and for the other end into the hole on the pipe just below the song and above the cap (you can put some silicone to hold the tube in place firmly). Cellulose based sponges will gradually decompose after long exposure in an aquarium and will thereby release toxins. Plug the end of the hard plastic tube with a piece of Styrofoam and insert it into the center of the sponge by first making a depression in the sponge with your finger then press the tube into the hole and all the way through the sponge. What was left over I gave to other fish keeping friends. Like with any filter, the bacteria will need time to grow. Water might have a hard time circulating through air stones and tend to go around more than through. Not sure of the quality, but budget brands like Tetra and Topfin provide suitable sponge material. I thought of maybe suggesting using air stones as a filter material, since they certainly are porous with lots of teeny holes but I think they may be not porous enough. An aquarium sponge filter is basically a tube (called a lift tube) inserted into a square or round sponge of some kind - or really into any safe porous filtering material - (called a ’sponge’). Then cut it up. But my idea is that above the air stone, you’d have a stack of these discs around the air hose. Pick the ceramic tiles that have the same size as your sponge and have the same color as your aquarium. A suitable sponge would be a dense, clean sponge that is safe for use with fish. Also, someone else might need this information, you can make it reach them by sharing this article with your family and friends across social media platforms. I’ll take pictures and document that process through the finished tank with happy fish. Sponge filter problems. The simplicity of this sponge filter can’t be compared to another. Just remember- simplest is best, air needs to go up, and water needs to go in. Insert the airline tubing through the larger holes until it comes out of the end pipe. I’d suggest though that the tube cover at least 50% of the distance from the top of the filter material to the surface of the water. This is mechanical filtration. To replace that water, more water is drawn into the bottom of the tube, through the sponge. Use the sponge cap to cork one end of the gravel filter tubing and stuck it down the hole on the sponge. Has the idea of baffling your aquarium filter left you baffled? Return to Filter Media Menu Return to Filter Media Menu. Not only are the cartridges costly, they are also bad for the environment. More rising = more power = more better. If you are a child of the 70’s and 80’s like me, you may remember old fashioned clear plastic corner or box filters (if you aren’t, just ask your gramma or grampa). Most of that is too small to see and is part of what makes aquarium water look cloudy. This whole stack would be inserted into the lift tube. To submit your vote please sign in or sign up, it is free and takes a few seconds. Aquarium Science Website Is it difficult to make a DIY sponge filter? Perhaps a piece of a nylon stocking or piece of a pair of tights. Rubber bands would work. just thought id give another construction (which IME is easier and works on the same principle, only no lift tube) these are great filters betta folks (or anyone else for that matter)! Add pebbles stone inside the bottle and cover it with the bottle cap. I’ll either extend this blog post or link to the new one. Have you found a project you would like to make? In a new tank, follow the proper tank cycling steps to establish the biological filtration within the sponge. And just because it would be cool, provided that it works of course. If you want the quick answer: Buy a suitably sized square sponge filter, stick it in a corner of your tank, add appropriately sized airflow for the size sponge and the size aquarium and you’re done. By gathering all that up against the sponge, it helps keep the water looking clear. Discover over 7651 of our best selection of Related Products, wholesale, Promotion, reviews on AliExpress.com with top-selling Related Products, wholesale, … I suppose you could even do a reverse-flow as well. Thanks, I’ll be sure to learn more about that. Bio Sponge 20"X20" Filter Media Pad,Pre-Filter Foam Sponge Filter or Aquarium Fish Tank. Top Rated Seller Top Rated Seller. Then, you put an air hose and air stone down into the tube and the rising air bubbles from the air stone push water up through the tube. Sponges compress to fill in all the gaps of a the tray etc. Do sponge filters work as regular filters? Silicone the bottom cap to the ceramic tile. The suction cup kits they sell for air hoses should be fine. DIY Aquarium Filter Bags and Media Pantyhose Media Bag. Pass a PVC pipe on the tubing and place it inside your aquarium. Whether you buy a pre-made sponge filter from a store or go the DIY route and make your own, you can pick up a sponge filter for just a few dollars. With the required materials and tools handy, you should be done making any of this in no time. Again, no expert here but IMO sponge filters excel at this biological filtration. For this reason, you should buy sponge material intended for aquariums. It is the air bubbles rising in the tube that provides the filter’s “power”. For a 20 gallon tank, if you have some other bubbly stuff, try a “60″ air pump. The top of the tube can be much lower if you want. Easy!. 99 Wrap the aquarium sponge around the world drilled bottles and bind them with sewing strings. 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