Heroo, so I bought this BEAUTIFUL powder blue tang from a new LFS I found, and I didn't even think they had fish, and boom the fish I had been searching for was staring at me. Now, not so happily ever after, I bought him on Wednesday 9-6-23, and did a 3-hour slow drip, they also informed me he has just come in and just got acclimated to their tanks so 0 quartine from them. But super good Labor Day deal I couldn't pass up on so worth the risk. Now, I was investigating him today and I took a video of what I saw, look like ick? but not 100% sure. Let me know what you think it is and what you would do to treat him. I haven't treated him for anything just dripped him and added him to a 5 gal. quartine and he's been eating pellets, shrimp, and Sally's seaweed like a monster.