From what I know, which is very limited being a 13-year-old and joining a month or 2 ago, I would either go with some type of snail or a Pleco. Pleco's live their life eating algae. And the Nerite Snail is not appetizing to fish. But everyone's opinions are different, and a Raphael Cat could work. They are shy though. Good info from other members who have been here way longer than 2 months ago. Good luck and welcome to the forum!