I purchased this algae eater just two days ago. I went online to research what to supplement his diet with, since its taken him only that long to eat the little bit of algae in my tank. While researching I realized I may have made a dangerous mistake...

Is this fish a Chinese algae eater, or an otto cat (otocinclus catfish)? The article said they are commonly confused and that the chinese algae eater would be particularly detrimental to my tank. (I keep angels) If it is a chinese algae eater, and I think it is, then I'll be returning him tomorrow.

Lemme know what you think.

(He's about an inch long)