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)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.