Hello all, I have been keeping tropical fish for well over 40years on and off. In the past 7 months I have purchased 5 new tanks. I have 20 gallons, 40 gallons, 3-10 gallon & I just donated a 6.5 gallon to my granddaughter (she is 11 & shares my love and fascination of aquariums). Anyways I purchased a stunning Koi Betta (whom I named Koi Boy) about a month ago. I originally had him in a 20 gallon with 7 black neons (which died from Koi chasing them constantly) & before you ask the neons where introduced to the tank 2 weeks prior to Koi. They developed some ich which I treated but his constant harrassment was to much for them. Really tore me up. My question is this. I removed Koi from the 20 and put him in a 10 gallon as I plan for him to be the single occupant. Koi has been non stop flaring at his reflection since I moved him. I had a coral backing, flaired for 3 hours, a black backing flair 1 hour Brite blue has been flailing on & off for the past 3 hours. I have turned off his lite & he is excepting food but I'm worried that his constant flairing is gonna cause stress and illness. I am attaching a picture of his tank ( I don't keep live plants but all his artificial ones have been softened and he seems to injoy them)