Don't get a yellow head sleeper goby. I bought it early in my aquarium education and I did not research it. I bought it on impulse cause it was pretty. After I got home I read up on it and I knew I was in trouble. They said the life span in an aquarium is about 7 months and that is almost exactly how long it lasted. It basically starved to death. I tried everything; sinking food, live food, Rod's, cyclopese, Krill, seaweed. Nothing worked, it was awful. I learned a valuable lesson, I have never bought anything since without researching it first. As much as I complained about the mess he made sifting the sand with the silt everywhere, now my tank really needs something to stir the sand. I have been researching what I am going to get but no decisions yet. I will watch this thread for ideas too, thanks for asking it.
72 gallon bow front, koralia 1 powerhead, approx 30 gallon sump and separate 20 gallon display refugium, Aqua C protein skimmer, Live rubble filteration, 80 # of LR, and a 4 inch sand bed.