I am writing to seek advice regarding an ich outbreak in my reef tank. Despite previously quarantining every fish using Copper Power and Prazipro, several are now showing signs of ich infection. Fortunately, they are all still active and eating, and I haven't experienced any losses yet. My guess is that ich got induced by a coral frag since Ive been buying a-lot from local reefers or an invertebrate, i don’t quarantine those!
The tank currently houses a Yellow Tang, two Storm Clowns, a Melanurus Wrasse, a Naoko Fairy Wrasse, a Tricolor Fairy Wrasse, a Possum Wrasse, a Cleaner Wrasse, a Cardinal, a Midas Blenny, a Watchman Goby, a Lawnmower Blenny, and a Hawkfish.
All these fish have been in my system for multiple months healthy!
Given the situation, should I allow the ich to run its course and hope for survival, i do have aqua uv sterilizer property sized, or should I remove all fish for another quarantine treatment? 6-10 week fallow. Additionally, if i do remove all fish do I need to remove snails and other invertebrates also during this process?

The tank currently houses a Yellow Tang, two Storm Clowns, a Melanurus Wrasse, a Naoko Fairy Wrasse, a Tricolor Fairy Wrasse, a Possum Wrasse, a Cleaner Wrasse, a Cardinal, a Midas Blenny, a Watchman Goby, a Lawnmower Blenny, and a Hawkfish.
All these fish have been in my system for multiple months healthy!
Given the situation, should I allow the ich to run its course and hope for survival, i do have aqua uv sterilizer property sized, or should I remove all fish for another quarantine treatment? 6-10 week fallow. Additionally, if i do remove all fish do I need to remove snails and other invertebrates also during this process?


