I cant remember what type (species) of fish I have! Please Help!?

I have a fish but i dont know what type of fish it is. It is a stripped fish that is like brownish yellowish. The stipes are verticle and are pretty thick. He is lives in my 10 gallon tank so he is not huge but he is big for a 10 gal. Also he has fins (duh) and somewhat resembles a shark-like fish. He eats flakes but he also ate 3 of my other fish so im guessing he is an omnivore. He usually stays at the bottom of the tank and hides in one of my ornaments. If you could tell me what type of fish i have that would be great because i honestly cannot remember!