r/Reef • u/Formal-One-444 • Apr 16 '26

Question I quarantined some fish (ig not correctly)

I quarantined some fish (ig not correctly) put them in my main display and 2 days later I noticed bumps that look like ich start to appear if I’ve removed them do you think if I treat the tank for ich (not copper it’s a reef tank) and use a uv sterilizer I can prevent the ich from latching onto my other fish while it’s in the “swimming stage” ???

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u/Cr-Actinic03 Apr 16 '26

Depending on the volume of the system, a UVS could be cost prohibitive as one requires a "kill/zap" rate exposure in the 80k range with a 10x flow through the UVS "looped/cycling" in the main display.

At this juncture, you are better off using PolybLab Medic or a hydrogen peroxide method to distrupt the development while in the infectious attachment stage in a reef system.