One of my fab 5 odd looking baby pleco's has been not eating or moving much for 48 hrs now. He'll stick to the side, but seems tired and weak. I have 2 others from the same tank at my lfs and they're fine. They all are pretty small. I hope he comes around. I added air, there's stress quantity salt already and heated it up a couple degrees. He moves a litte, but hasn't been eating.