Cut the light time down. I have one that comes up and flares at me every time I look at him. No big deal. I mean no offense by this but I believe you worry too much about your fish. If you let everything stress you out then raising fish isnāt an enjoyable and relaxing hobby for you. If the fish isnāt showing signs of stress, then perhaps he just likes to flare. Does he ever stop and rest? I let myself get so worried about ich on my fish that I was stressing them out. I finally gave up, covered them up, left the tank at 87F and walked away. I uncover it just long enough to vacuum the bottom each day and feed them. Guess what? They donāt need me. The ich is clearing up and we all are enjoying our days more. What Iām saying is to just chill. He will stop flaring if he gets tired. Meantime, you can relax and watch a movie. Iām taking my own advice here and hope you will too.