My betta sushi has gotten these spots of red/orange and white on his gills and idk what it is if its normal or not. when i first got him he didnt have them.His water always stays around a steady 75-78 and his water is always clean he doesnt have gravel and a heater for his tank. He eats betta pellets and dried blood worms every other day and hes always very excited and "aggressive" when he eats he never hesitates and He'll jump up out of water for food. His color hasnt lessened actually since i got him and even while the spots developed his color has actually gotten more vibrant, his yellow was chip color yellow and he was dull blue and now hes a cobalt blue with teal highlights and his yellow is now crayon yellow. His fins have gotten longer and better and he isnt less active or anything hes all around healthy they only concerns i have are the spots on the gills and the fact that the pics i attached (i hope i did them right and u see em..?) of the spots on his gills is his first time hes EVER flared he doesnt besides for the dry erase marker color you see and it was just a hour ago never before that.I got him July 26 of this year and hes never acted sick and still doesnt i just worry about him hes basically become my son almost i care about him alot id do anything to keep him healthy and make sure he isnt sick rn. Even if it isnt something bad if you know what the spots r please tell me and if it is sickness tell me what it is and how to treat it? Please and thank you