Black patches on clownfish

[SnazzyUrchin792]

The other day I noticed these black patches on one of my clownfish. The tank is currently a FOWLR, and the clownfish is behaving normally. Does anybody know what is causing these?
Salinity: 1.026
pH: 8.9
dKH: 10
Temp: 80

 

[vetteguy53081]

The other day I noticed these black patches on one of my clownfish. The tank is currently a FOWLR, and the clownfish is behaving normally. Does anybody know what is causing these?
Salinity: 1.026
pH: 8.9
dKH: 10
Temp: 80

You may have here what is known as a mocha clown. If true, it is going through a color phase as a few of mine have done and becomes more chocolate in appearance. It does not looks like stings or disease

 

[SnazzyUrchin792]

This clownfish is fully mature, will they still randomly change color as adults? Also, this is a percula clownfish, do they have a mocha variant as well?

 

[MnFish1]

This clownfish is fully mature, will they still randomly change color as adults? Also, this is a percula clownfish, do they have a mocha variant as well?

I would say no. I would say - however, with the clowns available, anything is possible. I would be more concerned with possible coral , anemone, etc injury causing the darkening.

 

[SnazzyUrchin792]

I would be more concerned with possible coral , anemone, etc injury causing the darkening.

Did you miss the part saying they were in a FOWLR?