My 4.5 inch Bala Shark has been one of the healthiest and happiest community fish in my 38-gallon tank. During the past 2 weeks, he's had short periods of frantic swimming and dashing back and forth. Sometimes he hits his nose on the glass. Is he getting too big for my tank? Is he bored? I don't want him to hurt himself.
Water parameters are good and the other fish are behaving normally.
Water parameters are good and the other fish are behaving normally.