i have a new florida gar that i've had for about 7 days. he's not eating. he's in a predatory community tank with several other fish. he's not being harassed or picked on by any other fish and fits in well with the rest of them. he's not stressed and seems very relaxed. i've offered him sinking shrimp pellets, floating pellets, freeze-dried krill, blood worms, beef hearts and even feeder goldfish. he's not eating anything. i noticed yesterday that he grabbed a floating pellet in hs mouth and chomped on it a few times and spat it out. i feel that he's wanting to eat but is not getting what he wants. the lfs that i purchased him from was feeding rosy reds and blood worms. my concern is that he might not survive if he does not eat soon. i've had finnicky fish before but never this bad. any suggestions?