I just received a shipment of Zoa's from Coral Fanatics. The first time I have ever used them and I am pulling off living
Sundial Snails and Nudibranchs.
The woman at Coral Fanatics (Deidra) was prompt in responding to my discovery. She apologized and said they were getting some of their stuff from a new source who may have introduced the pests. She said they were doing Iodine dips for 30 minutes, but either that step was skipped or it was not a strong enough solution. In either case it did not work.
If you order from Coral Fanatics anytime soon, just be sure to quarantine anything before you introduce it to your tank.