Originally Posted by Sorceress
could i feed the oto algae wafers or other food if he not getting enough for his type of algae
My experience is otos are finicky in this respect. Over my years with tanks I've probably had 20-30 otos, and of them, I can think of two that would ever eat more than a passing bite from a wafer. Some people report luck with otos eating blanched cucumber (seeds removed), I've never tried that so I can't say for sure. I'm a little doubtful, though, that cucumber would have the range & quantity of nutrients necessary to keep an oto alive long-term.
I know preferences are always subjective, but in my mind, otos are a functional fish--you put them in your tank because they accomplish a given purpose (cleaning flat surfaces of soft algaes). If your tank doesn't have enough of that sort of algae to keep an oto alive, then I don't really see why you would want an oto in there in the first place.