I am currently using a sponge filter I got online from A&*els Plus. I like it because its weighted.
I read that you should not have LS in a QT, so I decided to use a small pc of LR to cycle, than I plan to remove it once the sponge filter is populated with bacteria. Other than that I am running the Cascade 80 (cheeeeezy) filter. It's only 10 gallons, I just want to have it when I need it.
TheGrog recommends an air pump, any one else have their opinion?