anyone know of a good fish that is affordable to buy that would swim in a school of 3 or 4 and fit in a 55 gallon? would be the only fish in it by the way.
Firefish are excellent shoalers.
But so are green and blue chromis
Cardinals are ok but they sometimes they are boring to look at
THEY DONT MOVE MUCH!
Firefish and Chromis are excellent: Easy to feed, peaceful and active!