Blue tang swimming agitated

[Pimba]

Tank is only about 6 weeks old and bought the tangs about a week ago. Got an ich outbreak after a few days so been treating DT with reef medic (yeah I know it has mixed reviews but vouched by some people at LFS that they've used it and it's worked for them ) and UV steriliser.

I have attached a video of the tang . He's eating both pellats and frozen food fine. But mostly stays inside rocks does scratch is body on rocks and comes out for a few only for a few seconds once in a while and darts inside soon.

I could still see some white spots on him but the spots I had on other fish are pretty much gone.

Can you spot anything from the video? I'm still so new to saltwater aquariums.

 

[blaxsun]

I've had success with Polyp Lab Medic/UV, but I also don't have a lot of other options up here in Canada. No video is attached.

 

[Pimba]

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