yeah i used to do that to mine, i had 2 males and 1 female....The females are fugly, but the males's colors are awesome.....too bad my tanks were those round ones without oxygen generator/etc ,they eventually died for some reason so i put them on the toilet and flush away.
YOU KNOW WHAT FISH ARE TRUELY ELITE?????
Neons....those mofos got this line in their back that glows .....its fucking awesome to see them swim at night