With 13 years of experience I only had 2 yellow tangs for a short while. So I ask you folks with more experience with them. I put this fish through the hybrid TTM and it is time to put him in the DT. I may keep him in my observation tank for a bit to try and fatten him up but my instinct is to place him in the display tank now for the best environment and grazing. No white feces noted. He eats nori. He hides when I come near the QT. No signs or symptoms of illness other than skinny. How fast do tangs regain weight? Or is this a sign of worms?