I'm sure there is a link somewhere, help me out please.
Edit: would it be better to ditch the UGF and do a sponge filter? I was thinking of doing half sand and half gravel. I was also thinking of putting 2 75g hang on back power filters for a 90 gallon tank. I've just been looking around and most people say dont use UGF anymore.
Edit: would it be better to ditch the UGF and do a sponge filter? I was thinking of doing half sand and half gravel. I was also thinking of putting 2 75g hang on back power filters for a 90 gallon tank. I've just been looking around and most people say dont use UGF anymore.