My sailfin tang is acting completely normal has great appetite but looks horrible. What the heck is this ich? He is in my reef tank so copper is not an option. I recently suspected my convict tang had flukes so I used prazipro(2 treatments 8 days apart). Man fish are a headache :/ advice would be much appreciated. This is a small sailfin tang maybe 3-4 inches. Tank is 5 feet long so please no tang police on this post. Yesterday I installed a large 36w UV sterilizer. Probably too late but would like to hear some opinions. What is this? What’s the best course for treatment? If it’s ich should I do nothing?
