mine had alot of blue in their fins, from John "snookn21", over the last few days they lost it due to a water change. I got 2 of my 5 on thawed strips of flounder fillets from Sams club, you get about 20 fillets for $10. Going to get the talipia one's next, these are just whats left in the bag. I cut them about an 1/8-1/4"" thick and about 1 1/2" long, throw it right infront of the surface flow and BAMMMMM...... the other little shibs just look at it.