Sick Domino Damsel

[220gallon]

Hello Everyone,

I have a good sized Domino Damsel(about 2-2 1/2 inches wide top to bottom and about 2 inches long) and over the past week he has gome from his normal nice looking self of black to his whole body looking almost white and or kinda see thru color and just sitting on the bottom until it is feeding time then he goes crazy like normal and eats but color does not change and when done eating he just goes back to the bottom.

Any help would be great

 

[Steven Pro]

The first thing I would do it double check the water quality: salinity, temperature, pH, alkalinity, calcium, ammonia, nitrite, nitrate, phosphate, etc. Please list actual numbers for anything and everything you can test for.

And, if you have a picture of this fish, that would be very helpful.

 

[220gallon]

There is a pic of the sick fish in my gallery.

He is eating good but just sits at the bottom of the tank and as you can see his color is far from black.