Horseface loaches go great with plecos. If you have a sand substrate, which is ideal for them, they are buried most of the time. We see ours maybe once a month and I stay up into the wee hours of the morning with my lunar lights on searching for him. There are better loaches for viewing tanks. Only reason I picked up a horseface was to fight a snail infestation in my tank when I first picked it up 6 years ago. There are better options out there loach wise. They dot really school either, more bottom feeders.