I have a male betta in a 10 litre tank i do 50% water changes every couple of days. Today after doing a water change i noticed that he was swimming round in circles whenever i put the syphon near him.Now hes swimming upright with his head up. He will not eat anything ive tried flake, frozen bloodworm. Is he going to die i have put him in a 1 g tank but have lowered the water level so he come up easier for air. Ive only had hm a couple of weeks and have become quite attached to him. Any help would be appreciated.