[Need help to identify fish]

Holy cow that was fast! Thank you so much! Now I know what information to look up.

[Need help to identify fish]

Hello all,

I recently received this guy from my local pet supplier. They do not know what he was seeing as how they themselves received him from a customer a few days prior. He's about 4 inches give or take, and he appears to be some sort of algae eater. Any help would be greatly appreciated so that I know how to best take care of him.