Michigan Cichlid Association
General Category => DIY => Topic started by: danielratti on November 11, 2012, 08:49:23 PM
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I was wondering if anyone on here makes there own sponge filters. If so what kind of sponges do you use and where do you get them? Ive been looking online and haven't really found too much info on the sponges. I know you want like high pore sponges or something like that.
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Yes I did. I will look and see if I have a pic to post.
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Buy someones old sponge filter assemblies and replace the sponges.
For the Hagen style sponge filter assemblies, I purchase these sponges http://www.bigalspets.com/foam-insert-1-5-x-2-25-x-4-75.html
I use a grommet punch to drill most of the way through. Pull out the core and slip the sponge over the intake.
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IMO the hydro-sponges are the best design.
For sponge, you want an open-celled sponge that's firm enough to take repeated wringing out and still retain it's original shape. IME most open-celled sponges are flimsy. You also obviously need non-toxic. I've tried to find a generic sponge that fits these needs, but have come up empty. If you find anything please share.
The best solution I have found is to either buy actual Hydro-sponges (jehmco.com) or you can DIY from Poret sponge/foam. The Poret is expensive though (IMO) and only available in the US through Swiss Tropicals last I checked. I managed to pick up some unused material second hand through someone that purchased on bulk and from that I built my mattenfilters and a couple DIY sponges. The pricing does get better as the quantity goes up.
FWIW, the easiest way I've found to cut sponges is to get them wet and freeze them. Then you can even use a drill bit to easily make a hole for the uplift tube down into the center.
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Why freeze? Just use apple corer. Worked fine for me IMO
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what type of sponge can you in HOB filters? Kinda like aqua-clear sponges?