What I found after tank cleaning

[walter84]

So in trying to get things moving with my 110g I have kinda neglected my 6g Fluval cube, which I recently bought.

During my water change I clean debris off my live rock. Bright and early the next morning I spotted bright pink and orange areas on my live rock. That I had not ever seen in the 4 weeks I have had this tank. I would take a picture and post but I just have my phone and these colors only show when blue light/ night light is on. And it looks crazy with my phone camera. It looks cool hopefully I can find my old canon digital camera and try to get a pick. When the regular daytime LEDs are on you can barely tell it apart from the corraline algae on the rocks.

 

[saltyfilmfolks]

Do you have asterina starfish? Id bet its a dead spot of corraline.

 

[walter84]

I am actually wondering if its some type of bio-luminescent Algae? I have no starfish, could i get one for a 6 gallon or possible an Urchin? Just a Clown fish, frogspawn, a hermit crab a snail (which is multiplying) and what i think are bristle worms (I would love to find something to eat them). Haven't seen anything else and I tend to watch the tank at varying times of day and night

 

[saltyfilmfolks]

When I have a lot of corraline. when i move a coral I get the same pink spots under them. Asterinas have done the same.

 

[SandJ]

This happens to my power heads after I take them out of the tank and clean them. After the coralline algae is exposed to air it will glow bright orange under the blue light.

 

[walter84]

That's funny some of this coralline is less than 1/2" from the bottom of my tank never came close to being exposed

 

[Griff]

I've been seeing this in my tank as well for a year. It comes and goes. I assumed it was a different coralline species. I have no starfish either and I get it in some spots that no air has been exposed to. Very interested in this thread, thanks for posting!

 

[saltyfilmfolks]

Pretty sure it doesnt need to be air. Light suffocation or for that matter nutrient suffocation.
A pretty easy experiment, get a frag from the lfs(now you have an excuse:D)and glue it on corraline. two weeks from now move the frag up in the tank for more light, and see what the old spot looks like.

 

[walter84]

You can kinda see the orange in these two pics

 

[Mr_anderson]

My emerald crabs eat coralline and the result kind of looks like that.

 

[ChrisAndJulie2012]

I have in the past knocked small pieces of salt creep and when it lands on coalline before it desolves it will leave a similar mark.