Originally Posted by SeaEquus
In regards to tank size for a yellow tang a 30 gallon or bigger is required...good luck!
Very inaccurate. A 30 will not be any better than a 10, as far as the needs of YT's.
75 is good, but bigger is definately better.
In a 10 gallon, I will give your tang 3 weeks before you see signs of HLLE, and sluggishness, if he isn't moved to a bigger tank, the HLLE will increase and eventually lead to his death. If not moved, after you first see it, it will rapidly engulf the fish's lateral line and head.
If you aren't to attached yet, maybe you can trade him in the classifieds for dry goods such as a skimmer or some LR or something we all could use. What state are you in?