I always find this one kinda hard to be 100% as far as recommendations are concerned. The risk is very very low but still a possibility. Personally I don't
QT any inverts but I am very cautious never to buy any inverts from tanks that contain fish or are connected to fish sytems. If you're not going to
QT, that's the next best thing. Only problem is unless you are buying in person, there's no way to know.
Cheers
Steve