Sick Talbot's Damsel

[NancyT3]

Hi there -- I have a new tank - now in its third week. Ammonia is at zero, Nitrates at 0, Phosphorus at 0. Carbonate at 161KH, calcium at 360; Salinity at 1.022 spec gravity, LFS told me to keep it lower than the 1.024-1.026 I see you guys recommend), so it is more like 31 ppm vs 35; PH at 7.8.
One of my Talbot's Damsels that has been in the tank for about 10 days now, has these bumps all over his lips. Any ideas what this is?
Thanks
Nancy

 

[griss]

This pictures are a little blurry. I’m not good with fish diseases, more of a coral/invert person.

I know @leebca will want a video at least a minute long, under white light showing both sides of the fish.

@Dr. Reef and @HumbleFish might be able to help as well.

 

[Dr. Reef]

Looks like mouth fungus or commonly known as mouth rot.
A broad spectrum antibiotic is needed to cure the fish.

 

[HumbleFish]

Is the fish still able to eat? If so, I would try food soaking vitamins or an antibiotic before pulling & treating in a QT.