I can agree with this. I purchased 2 tank bred clowns, 4 tank bred azure damsels, 1 pyramid butterfly, and 1 flame hawk. The clowns, and azure damsels looked great at first, then the next day or so saw flukes on a clown. The clowns and 2 azure damsels died within a few days, and then the butterfly died. I will not ever purchase and QT tank bred and wild caught fish together again. I might try ordering fish from them again because of their guarantee and customer service was excellent. I did order a CUC that comes in on Friday. But truthfully I prefer getting critters from my LFS.
you should quarantine the CUC. I did that and I'm pretty sure that's how my tank got vermetid snails. Got them from LA, and a few months later, I see them all over my rocks. My experience with LA has been pretty crappy to say the least...the customer support has been great, but the product....not so much.
I know not QT'ing the CUC is my fault. I usually order from reefcleaners, who I know has a fallow system for inverts. never had any issues. 1 order from LA and all hell breaks loose.
Live and learn.