We have the two babies (born end of may), one puget & one red-sided, and they were both the same size when they arrived about two and a half weeks ago.

They both ate the rosy reds at their first feeding, about two weeks ago, but the red-side has yet to eat again. The red-sided is lively, but thin and its growth isn't keeping up with the puget. We've tried rosy reds or guppies, tapped the guppies against her nose, but no luck. Tomorrow I'll separate them, and leave fish in the bowl in their tank. any other suggestions?