Many mandarins that are taught to eat prepared foods are initially kept in a small QT (which would be the idea with the office tank). One difference is that I could pollute the tank quickly if not careful. I don't think the office tank is the solution for different reasons. I think what is lost here is that this particular mandarin doesn't have a prey drive. I am going to try and work with the shop and see what they can offer me because pods or no pods it's not eating and it has not moved off the bottom of the tank.