Having read many posts regarding QT tanks etc I can see you have to do it for fish corals anemones and there is loads if advice in this respect but what about clean up crew the snail's crabs and shrimps? These are likely some of the first entrants to your DT so best ensure they are in good health but how can you spot a sick snail or a poorly crab? Also if the QT has no sand or rock etc what will these guys feed on whilst in the QT?

