Join Date: Jan 2007
Location: "Swamptown", SC
If all else fails use storm door screening, thats what I've put on my HOB filters in some of my tanks with livebearers. It seems to work well with the exception of having to clean the intake at least 1-2x a week depending on fish load (scum can build up fast on anything that is covering the filter intake). You can even use pantyhose if you would like. But I have a feeling you want the sponge for the purpose of a grazing material for the shrimp...am I correct?