So we ordered and received a mated pair of clowns that have been undergoing TTM since 8/30. They were at the fish store (CoralreefTN) for at least a month before I got them. I know this as they were WYSIWYG and we had them on our list of possibilities back while the tank was still cycling. They are eating well, swimming around a lot, and I don't see any spots, fin damage, or anything unusual about them. After TTM is complete, does it make sense to still keep them in QT for observation for some additional period of time - I've read anywhere from 0 to another 78 days? I have no other fish in the tank, just corals, two skunk shrimp, and snails. What is the risk of them having something undetectable and having a negative impact on the tank? Thanks!