I have a new pair of clowns and a yellowtail damsel in my 13.5g tank, they were added a little more than a day ago. After trying to feed them today both the damsel and 1 clownfish ate, the other one didn't. I tried putting food (flakes) exactly where he is since he is just on a corner on the tank swimming and the other fish ate it. The clown seems to be uninterested in the food, could he still be scared since he is new to the tank?, or maybe flake food was not a good choice?. As a side note I noticed the fish is swimming a little odd but cant explain why, this is probably me overthinking it so I'm not sure. Is it a good idea to leave it without eating? They were from LA so were shipped Monday and arrived Tuesday. Thanks in advance