My girlfriend's co-worker gave us a tank (Top Fin Aquascene 180 3.5 Gallon Aquarium) because she moved, it's this one here, and recently my rescue crown tail died in it (along with the ghost shrimp he was mostly eating). He was sucked up into the filter it came with, so I'm thinking...
I'm sorry if this is a stupid question. I'm new to the betta community. What other accessories do you need in order to operate a sponge filter? I heard you need an air pump. Is that it?
What air pump do you recommend?