I cleaned my tank as usual...not using anything different, just same routine but Flare has just been lathargic kinda floating at top of water since. i move towards him and he begins to twitch and go crazy, even put my finger to the tank and the slightest tap he twitches. He is not eating and the food i do put in there he does interact with it and kinda twitches his body on it and swims off. Then he may come back to it and pushes it with his mouth but never opens his mouth to try and eat. He's just not acting right. Any thoughts???