Every Shark Biggest To Littlest Is My Shark Too Big For My Tank?

Is my shark too big for my tank? - every shark biggest to littlest

I have a 55 gallon tank with 10-inch shark balls. It was about 2 inches long when I got him. Now, it's huge! It frightens and sometimes even themselves, and collect plants. The pH value is in order. We found that whenever he does. Can it be too big? The only fish big for her, a placo sevrum and 10 inches. There are too few fish.