At my lfs they had a clown tang that I was interested in and I noticed ich, I asked if it was in a QT and he said no all 40 tanks were connected to one sump that used a uv steriliser and that it kills the parasite in the water. I read that they hatch from the sand until finding a host. so I'm now put off from buying from them, is it a risk buying from them? And is a uv steriliser 100% affective in this situation?
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