For the last 4 days my betta Ozzy has been extremely bloated . I have fasted him for 3 days and I fed him half a boiled pea yesterday, but he still looks the same. He is swimming fine and behaving as normal, but his belly just looks so big. Is there anything else I can do for him? I normally feed him 4 ocean nutrition brand betta pellets twice a day, 5 days a week, then frozen blood worms once a week, then fast one day.