stevel
Member
Is a sponge filter needed when using a sump?I took the sponges out of the overflow box and replaced them with stand pipes to quiet it down.I am still using a sponge on the return pump.I find that some food gets on the sponge and now since I have live rock in the sump any critters would not make it threw the sponge.Would small pieces of food pass threw the mag 950 without doing any harm? I tried putting some filter material on the eggcrate in the supply side from the tank but it seemed to collect bubbles under it and would end up floating.