My pacu who I have owned since it was a tiny baby is now about 9" long but has never had a problem of coming up to me or has been scared. But since last week that has change when ever my pacu sees me he goes into the corner of the tank and hides behind some plants, I have not scared the fish or anything, the tank is in my room and the only other live thing in my room that see the fish are my rats, mice, and snake (all pets). I don't know what spooked him and I'm actually really concerned because when I feed them he goes right into his corner and refuses to eat until all the lights are off, im out of the room or he can't see me? Help!?!