lee

Thank you Streetwise. That sounds great- I can't wait to switch out this filter!

Hello all, I would like to switch my current HIB filter to a sponge filter. The sound of the trickling water is annoying me... but I also do not want to hear the hum of the air pump. Does anyone know if I could use the USB Nano air pump with a medium size sponge filter in a 20 gallon? Would that be appropriate or do I need a more powerful air pump? Thank you- lee