Hopefully this is in the right place , I got me a new Oscar today and he is a small one 3" max he looked really good in the store he looks good now its just that he was a really good black with perfect orange colors. Now his colors fade and then come back then fade again he is staying close to the bottom not really swiming around much ? is he alittle stressed what do I need to know when he is this small he is in a 75g tank.