[Pop Puffer]

What kind of small catfish can be kept in a 30 gallon tank? I am planning on having the temp. at 75 (f) and the PH around 7.0. I am keeping smaller fish in the tank so I dont want any fish that will gobble them up! I'm not keeping anything over 4.5 inches just to give you a range.

 

[Byron]

Corys are one of the best substrate catfish; they will eat fry (and eggs obviously) of other fish, but not mature fish even if small (under 1 inch). [BTW, a 4.5 inch fish is not what I would call "smallish.";-)]

Another peaceful catfish is the Whiptail, Rineloricaria parva in our profiles, the original or the red lizard variant. Same as the corys, only likely to eat eggs and new fry.

Byron.