This has been going on for about a month and I don't see it getting better. I had high nitrates (40-60ppm) and finally got them down. I thought this was the reason for the flashing, but nitrates are now about 10ppm and he is doing it more often. Ammonia and nitrites are at 0 and he eats and acts normal with the exception of flashing around for 5-15 seconds multiple times a day and night. I just for the first time seen him starting to list on his side slightly. The Botia Striata loach in his tank has been fine as well as a L91 pleco. Every once in a while the cichlid cuts himself on a rock while flashing too, but he heals relatively quickly. No signs of anything on his body either, he looks great and acts normal with the exception of the flashing and now just listing onto his side for the first (which could have been him just acting weird/curious about something, although he showed his stress colors and was on the bottom substrate). He is in a 55 gallon and about to go into a 90 gallon this weekend which just got cycled for him. I may be better treating him in the 55 gallon tho as most of my filtration is still setup on that tank. Any clue what could be causing this and what I should do? He is my most favorite fish ever by far and would hate to lose him. I never mentioned that he is a Chocolate cichlid, not that that matters.