02-17-2013, 05:43 PM #10
...no to rainbowfish. They need too much swimming space and most species grow far too large for a 15gal.
The only ones I can think of that might do ok are threadfin rainbowfish which stay pretty small and are not like other rainbowfish."Somewhere, something incredible is waiting to be known." Carl Sagan
~ My 350 Litre Tank Journal ~