white patches?

[BCreefmaker]

i noticed today when i was feeding my fish that my naso tang seems to have something growing on his head right behind his eyes, but before his dorsal fin and also on one of his pectoral fins. it looks almost like a white fungus. i should also note that they have been living together peacefully for a year or more, but now i notice the foxface and the naso fight since i moved this set up to my house. they all seem very fat and come out all the time. is there anything i can do?

 

[reefnetworth]

stress will give a tang ick extremely fast. you need to QT it and treat it ASAP! good luck, hope all turn out well!

 

[BCreefmaker]

is a 120G tank too small for a big naso tang, scribbled foxface and yellow tang? the fish came with the tank and when i added all my LR to the tank i crowed it quite a bit.