Brown spots on Yellow Tang

[2JZGTE]

I've had this yellow tang for about 5 months and he's been very healthy so far. I introduced a powder blue tang and he brought ich into my system. So I ended up removing all the fishes from the display tank and placed them in a 30 Gallon long tank for hyposalinity (1.009) treatment. They've been in there for about 6 weeks now and the yellow tang just started developing these brown spots all over his body...anybody know what this is and what I should do about it? Is it just stress related? Or do I need to get some medicine to treat this and the ich?

I've been doing 50% water changes every other day the entire time to control ammonia and nitrite spikes. I have a powder blue tang, yellow tang and blue hippo tang, 4 chromis and a clown fish. I know the tangs should have a bigger tank but this is all I had to put them in. I'm hoping a few more weeks and I can put them back in the 150G display tank. Noobie mistake...I definately learned my lesson and will quarantine any new fish in the future.

 

[b0bab0ey]

Noticed any fighting between the Yellow and the PB? Hard to tell from the pic but those could be battle scars. Also, I think your YT might be developing early signs of HLLE around the face. In any case, I would probably treat with antibiotics. Even if those marks aren't an infection of some sort, they look bad enough to potentially develop into an infection IMHO.

 

[2JZGTE]

I've seen the yellow tang and powder go at each other a little bit, but it's usually nothing serious. My plan is to get some medicine for them just in case.