gamergonemad wrote:
-Have you been treating the tapwater you put in? yes i have and i cycled the tank its 30g the filter is the right size for the tank its made for a 55g tank he is the only fish in there
Awesome.
Ok well, it is perfectly normal for an oscar to be 'shy' and not eat for a bit after being introduced into a new environment. He'll hide, lay on the bottom, won't eat...all normal behavior.
He needs some time to 'acclimate' to his new home and he'll be fine. It can take anywhere from a few days to weeks, depending on the individual fish.
Oscars can actually go for weeks without eating so you needn't worry too much about starving. He'll eventually eat when he's ready and feeling more comfortable. I would get him some of the tiny hikari pellets instead of the flake food, but again his instincts will take over eventually and he'll be ready to eat.
Some things you can do to aid in making it as least stressful a transition as possible is to leave the lights off for the majority of the time. If you have him in a room that gets natural lighting just use that for the majority of the day. Also, turn room lights on before turning tank lights on so as not to startle him. In my experience oscars prefer less light rather than more, but they can get used to pretty much anything.
Also, give him a place to 'hide' like a cave, or some rocks, or plants, etc.