Jim Seidman wrote:
I haven't seen rainbow fish at Petsmart. (And I've been looking
regularly!) I'm curious whether you (or anyone else) has purchased one
of these colorless fish and taken it home, and whether its color then
improved.

The only fish I've ever purchased there were feeder goldfish to cycle the
pond outdoors.

--
Victor M. Martinez

http://www.che.utexas.edu/~martiv