Blonde Naso Tang ID Disease Please.

[foxrazr]

Had my Naso for about 4-5 months already. never a problem with him/she. He/she is about 5" now. Is eating extremely well seaweed and premium reef flakes. Is acting normal. Breathing normal. Is housed in a 180 gallon with live rock. Current tank mates are: 2 Bangai cardinals, 2 cleaner skunk shrimp, pair of O. Clowns, 2 blue/green cromis, blue tang 4 1/2", pink spotted goby, royal gramma, 1 cristata coral and 1 hammer coral. Tank parameters: Salinity 1.025, Temp 78-79, pH 8.2, Ammonia 0, nitrates 0, Ca 450, Dkh 8.3, Phosphates undetectable. I came from an overnight trip and noticed these spots. What could it be?

 

[sandwi54]

Tangs have the ability to change body colors suddenly. these spots are typically stress related which disappear quickly when the stress is removed. are the spots still there now?

 

[foxrazr]

Yes, still there.

 

[b0bab0ey]

My PB Tang gets splotches like that from time to time. I suspect it's from rubbing up against a coral or swimming too close to my GBTA.

 

[foxrazr]

I'm starting to suspect he might of gotten to close to the hammer coral. At night he sleeps near it.