I’m looking for a fish that would fit into a 45gal(24x24x18) tank that will eat algae. I currently have 2 ocellaris clown fish, and an orange spotted goby(Amblyeleotris guttata). I wanted to add a royal grama, purple firefish, and a long nose hawkfish. I was reading that a Hector’s Goby (Koumansetta hectori) might fit, but I was looking for options on it, or another fish that might fit what I am looking for.