So I was looking at either internal filter or sponge filter. If I choose sponge filter would I be able to connect it to a submersible powerhead or do I have to use an air pump? I really dont want to do air pumps b/c of the added noise they produce. My bio load is small enough to where I dont mind the space that a sponge filter or internal filter would take up.
One of my tanks has a sponge filter running on a Tetra Whisper pump. It's pretty quiet, even more so since I rested it on a folded dish towel. I hardly hear it.