Size of aquarium - for normal sunfish and bullheads my experience has
been primarily a 100 gallon aquarium. Dwarf sunfish like Enneacanthus can do
well in a 50 or 55 gallon.
I have a 12+ inch Bluegill and a similar length Yellow Bullhead in a 100
gallon tank with a 6 inch Long-eared Sunfish and a colony of Convict Cichlids
that were put in there as feeders and have survived, grown and reproduced. I
have to remove the Convicts soon they are getting too big and too many. The
Bluegill and Bullhead grew from about 4 inches in 2 years. Their growth seems
to have slowed down recently - probably maxed out or the dreaded Convicts are
too competitive.
Lee Harper
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