phosfluorescence mystery

I have a tank 5 weeks old, when my blue leds come on at night, I can see a couple of things phosfluorescencing on 1 particular rock. When the lights are off, nothing, only under the blue leds does it do this. When lit, they're tiny, about 3-4 mm long and reddish-brown, nothing out of the ordinary looking. Kinda tiny to tell what it really is.

I've tried to take a pic, and with the low light (I shot this at 3200) it's grainy, but I've circled the areas in question.

Anyone have any ideas what it might be?

 

do they move or are they in the same spot every night?

 

Welcome to 3Reef!

I've never seen that but it looks cool.

 

is it a type of algae?

 

Certain types of coralline algae can fluoresce, most likely some type of algae or something on the rock. I wouldn't lose sleep over it that's for sure

 

you would if it looked like this

especially if its in your bed room

 

what the heck is that sostoudt?

 

somebodies tank that cultures bioluminescent algae
Grow Your Own Bioluminescent Algae

 

that is really cool!

 

I can't tell from the pic but it is probably one of the various fluorescing ophiuroids.