foxface is losing his tail???

[reefwars]

in with him now are the pair of maroons,puffer,and unknown wrasse(2")all the fish have lived together for a while and are quite large the tank is well established just got moved across the city,they were in buckets and me and the girl friend spent alot of time slowly changing water back and forth before they went back into tank(about 4 hours because of the size of the bucket)we didnt put them in any order and they seemed fine that night and yesterday but this morning his tail is just about gone,i figure disease takes time to set in, so it has to be another fish the puffer hangs around him alot but doesnt show any signs of aggression at all, and the clowns pick on them selves so their always busy lol. the heaters are on low and there isnt any very sharp pieces of rock, the lights are 4 t5's and 3 metal halide and are about 7" off the water.ill be taking water tests today and some pics to post.i didnt put the damsel in their yet untill everyone finds their own territory again since i changed the aquascaping. we have other tanks so we are somewhat educated on some of the stuff,if need be i have a 33 gal i can stick him in if its an emergency but the fox face is about 7-10" so it will be crampy since he likes to swim.also this morning i added some water with conditioner with aloe vera in it to help with his tail ?good/bad????thanks