Coraline Algea turns pink then dies

[john90009]

Iv noticed that over the last 3 weeks my coraline algea would have a small circle with slime on it, it turns fluorescent pink, and then turns white and dies.It seems to spread to a larger circle and now its a 6 inch circle thats dead on the back wall towards the top to middle of the tank . What do you think this is from everything is stable in the tank and the corals are extremely happy, Do you think me replacing the old t-5s with new ones is causing it?

 

[daveh285]

Could you post pictures?

Could possibly be Coraline Lethal Disease



http://www.reefball.org/coraldiseaseoffline/lethal.htm

 

[john90009]

It kind of looks like that and i dont have a camera to take a picture. lets say worst case scenario is i do have that disease what should i do, i changed my t5 bulbs which im guessing thats what caused it. it isnt happening to any of the coraline that is on the rock.

 

[john90009]

There is no green algae anywhere in the tank to.

 

[blange3]

I think if all of your parameters are good and stable, and your corals and fish are healthy, then leave things as they are.

Sounds like this is a issue in the reefs at large because it inhibits reef building. But in a home aquarium, so what?

If you want to give a boost to your coralline, make sure your mag is good as well as the CA and Alk. Maybe cure and add some new live rock to seed more coralline, but I wouldn't react to this too quickly.

 

[redfishbluefish]

I think another possibility is light bleaching. Leaving the lights on when doing a water change could bleach out the coraline. Your comment in the OP of the bleaching being at the top to middle of the tank leads me to this conclusion. Check this link:

http://saltaquarium.about.com/od/aboutcorallinealgae/a/aa_coralineblch.htm

 

[john90009]

The water level of when i do a water change only drops 2 inches and the coraline started dying way under this, i was told flow which could be a possibility however the slime is getting pushed by a lot of flow when it is present.