I have 2 yoyo loaches. They're wonderful. active, curious, nimble and fun to watch. they love swimming in and out of caves and hiding places. They seem to play. They burrow in the gravel. I bought one when we had an infestation of little snails. It seemed lonely and swam in circles constantly in front of a mirrored side of the aquarium. As soon as I bought another, it left the mirror and began to enjoy his new home. In a few days all the snails were gone. I feed the yoyos algae wafers and shrimp pellets. I think they eat some of my plants. They make loud clacking noise when they eat sometimes. Kids love to watch them. They live peacefully with tetras( diamond and siver tip) and gouramis. However all my fish are about the same size, so there is no agressor, so far. Get Yoyos.