i've tried 6 giant danios. They lasted 2 nights. Last night i tried 5 tiger barbs. They lasted like 7 hours. Does anyone have any other ideas for target fish? Im trying to make my 6 inch jag less nervous. His tankmates are a 8 inch endli and 1 sternella. The jag is extremely nervous and refuses to come out when the tank light is on. Even when the light is off, if i stop and bend near the tank he hides. I've had him almost a year now and im starting to wish i never bought him.