Tang has a weird spot but doesn’t look like Ich

[Danghost22]

So I know what Ich looks like and this doesn’t seem to be Ich. I have had the same fish for a while now and haven’t had Ich for months close to a year. My water quality seems is fine with nitrates at 5 and phosphates at 0.03 I don’t know if maybe it got stung by a coral or something but the blue tang eats none stop.

 

[Bepis]

Could be a parasitic copepod

 

[Danghost22]

Well it disappeared? Very strange

 

[Danghost22]

Could be a parasitic copepod

I hope the 6-line eats it

 

[Bepis]

Well it disappeared? Very strange

That could mean one of two things it’s gone for good or it broke off to multiply. I may be mistaken

 

[Baronen]

Sand / pebble

 

[Danghost22]

Sand / pebble

I think your right I did see the fish trying to get some algae from under a cave