Not really, I'd argue that it's actually the opposite. Neither of them can house anything over 10" (with the exceptions of certain inactive species), but a 55 gallon provides 48" of length as apposed to the 36" you get with a 40g breeder, which gives you much more options for 8"+ fish, rather than being limited to maybe one or two fish around 8" and some smaller fish. And for the fish the OP's considering, length is going to be more important than width (other than the peacock eel, where it doesn't make a difference either way).packer43064;4754413; said:For this site a 40 breeder. Alot of people want to keep larger fish and a 40B will last longer with it's wider footprint than a hallway like tank they call the 55 gallon. If you were on Aquaria Central I would say 55 since alot keep smaller fish.
I agree with you about the 40g being better for the bearded dragon, but the catfish would definitely benefit from more length as opposed to width (assuming that by "bullhead" he means Ameiurus serracanthus, since the others would outgrow either tank) , and a peacock eel can thrive in either tank size.MonsterMinis;4754608; said:40B while all arguments either way are justified personally I like the bigger footprint. and if you intend a bearded dragon, or spiney eels, or the catfish I would lean towards the 40. the height would impact heating for the dragon, and the footprint is always bigger the better for bottom dwellers.
Yes.clemsonguy1125;4754626; said:Ok thanks, this is a tough decision, normally I would wait until I know exactly what type of fish I want but I want to get it during petco's sale. Will exodons be ok in a 40 breeder if I have say 15 or them and its lightly planted with plenty of hiding spots. And would a snail bullhead outgrow it.? They max out at 11 inches.
clemsonguy1125;4754626; said:Ok thanks, this is a tough decision, normally I would wait until I know exactly what type of fish I want but I want to get it during petco's sale. Will exodons be ok in a 40 breeder if I have say 15 or them and its lightly planted with plenty of hiding spots.