Originally Posted by sega dude
His water is changed about 3 to 5 times a month. I'm not sure what the water tempature is but he is always changed with room tempature water. The other fish is his refelection.
Yeah, very likely he is sick because the water quality is bad...you need to do a few 100% water changes a week, especially in a smaller tank.
Also, he could be cold. Unless the room you keep him in is constantly 75-82 degrees, he'll do a lot better with a heater, since bettas are tropical fish and need warm water.