Lobo starts to turn black at night

[uutank]

I’ve observed a strange behaviour in my lobo, at night it starts to turn black, it starts getting black coloration on it. Under actinics black color is visible.
Also any good pest killer than Bayer. I’ve worked with Bayer for a year now. And I’m not at all happy with it.

 

[reef lover]

Dont see any pests looks completely normal. And nice specimen at that.

 

[uutank]

Dont see any pests looks completely normal. And nice specimen at that.

I don’t know man, I’m scared of a potential stn maybe. Or tissue necrosis?

 

[reef lover]

No hes just opening up to feed...looks really good...

 

[uutank]

No hes just opening up to feed...looks really good...

Yeah that’s because I took the picture just after feeding the lps.