I went to Pet Smart today, *SLEEPING* I bought a 10g tank to be used for my quarantine tank. It was a kit, came with a heater (which I am not sure is good enough), a hang on filter (which isn't any good to me), but it was, the only small tank they had, that had a cover for it and it also had a light. My book shows an air driven sponge filter in the diagram and says you can take the sponge and put it in your sump to get the bacterial growth it also shows some LR, good enough or not? I also bought two more books.