Blenny under blue light

[Idaknow15]

Anyone else’s Bicolour Blenny have markings that show up under bluer lights?

I was really worried the first night I noticed this but he seems happy and healthy enough!

 

[MichaelReefer]

Yup, mine does.

 

[KeepSwimming12]

Anyone else’s Bicolour Blenny have markings that show up under bluer lights?

I was really worried the first night I noticed this but he seems happy and healthy enough!

View attachment 2324670 View attachment 2324671

I don’t have a bicolour Blenny but my Midas Blenny shifts his colour if lights change and goes straight back to yellow when white lights come on so I’d say from that you’re okay.

 

[jfoahs04]

A number of different blennies do this same thing at night (or sometimes when they're frightened/stressed). It's a form of camouflage that helps them blend into the rocks. My tailspot does it every night and did it a bunch when I first got it.

 

[EricR]

Yeah -- my bicolor blenny gets tiger stripes when he's startled. Then they go away pretty quickly when he's just chillin' out.

 

[PNW_squidz]

My bicolor looks like that all the time. Seems normal.

 

[Daniel@R2R]

That's really cool. I didn't know they did that.

 

[Mattyreefs]

The first time I noticed this on my bicolor was at night after the lights were out and I shined a light on him. I thought he was sick or something before I realized it wasnm normal.

 

[LadyMac]

My watchmans spots glow under blues

 

[Spydersweb]

My Midas can change color in a flash. Kinda cool to see

 

[Hairyteeth]

I've had a bicolor, they do it when stressed or scared as said above

 

[Gup]

My watchmans spots glow under blues

I just purchased a very small, baby Watchman goby. He's so small that his spots really are barely noticeable, at this point. But I am looking forward to eventually seeing same thing that you experience.


Just thought, perhaps I'll pull out my lrg magnifying glass, while he's up against the tank glass