So, I thought I'd show you how Uncle Sam is doing. Long story short - he was in a 10 gal divided tank and was so stressed out he took off nearly all of his beautiful tail. I moved him to his own 3 gal with no filter and now he is one happy camper.
1st pic: during his downward spiral (I didn't get a pic of him at his worst)
2nd & 3rd pic: now, almost
The edges of his tail were bright white before, but now as they grow back they're clear. Bummer, cuz the white was amazing. It was really hard to get a pic where you could actually see his healed tail but hopefully you can see it well enough. (BTW, he is a doubletail)