I picked a baby Tiger Oscar 1.5in last night and joined him with 3 baby peacock bass. He was active at the fish store before i brought him home. He is acting weird not really swimming, he is tilting back and forth and letting the pressure from the filter push him around. Only thing i notice is at the fish store the temp was under 80 F and my tank is at 85-88 F. You guys know what is wrong with him?