I bought them both 2 days apart and they are currently housed in a QT 10 gallon. They seem to be moving around scrubbing the glass but they are not eating what I give them. So far I have tried market shrimp, spectrum ciclid sinking pellets and algae wafers. What can I give them that's a sure thing. They r not skinny looking at the moment but this is now the third day since I've had them for.