I have a 110 gallon tank with two severums and 4 silver dollars and a convict. I recently bought a baby oscar 2 days ago. I had cleaned out 40% of the water before getting him because I wanted to make sure hed be healthy. I put him in and he was breathing hard and hiding from the other fishes. The 3 inch wild severum was scaring him and wasn't fighting would just intimidate it so I stupidly moved my oscar into my 10 gallon with guppies and a molly today. Now hes laying on the floor breathing hard so I think I made him worse :/ when a fish gets near he swims off quickly then lats back down and breathes hard. I put 20 gallins worth of the stress medicine from api? I added a little chlorine detoxifier just in case even though everythings fine with the water. Im just being overly paranoid. I also tirned off the lights from the 10 gallon. Is my oscar going to die?I feel like hes pretty shocked from stress. What can I do???