i put another otto in the tank so theres three now i can usally see at leats one out eating for a couple of hours a day but other wise i cant see them they seem to doing fine so im not going to worry about it that much. I also scraped out some of the more dense alge because it was on the front of the tank and i didnt like that. And as far as the yoyo loach goes he seems fine he only really chases one fish around which is the black skirt but the black skirt dosent really care he just chases him back its fun to watch, and im not to worried about how big the yoyo gets cuz i also have a 30gal and a 75gal. and right now hes real small only about an inch mabey less
