Coraline alge

radiolotek

Member
The coraline alge is starting to turn white on the rocks. Is this due to depleating calcium levels or something else?
 

jerth6932

Active Member
Originally Posted by Radiolotek
The coraline alge is starting to turn white on the rocks. Is this due to depleating calcium levels or something else?
How long have you had your tank up? If you have had it up for a while .... did you recently change bulbs? And have you checked your calcium levels?
 

radiolotek

Member
Tank has been running for 2 years and no I haven't changed bulbs. I need to though. Its way over due. I have not checked calcium levels. You think that would be a good idea to do tomorrow? I can't think of anything that would be causing it. The light hasn't changed positions and the water levels are good. The only thing I can think of would be the hermit crabs and snails I have added recently. Other than the calcium thing. Any good ideas? It was growing soo good I don't want it to die off now.
 

wilsonreef

Member
When my Coraline starts to go white if I check, sure enough my calcium levels are low. Bring them back up and coraline comes back in those places.
 

pclown

Member
Yes, I have been told the same thing about the calcium. If your calcium is too low for a period time the your Coraline algae will turn white.
 

ctgretzky9

Member
Originally Posted by Radiolotek
Tank has been running for 2 years and no I haven't changed bulbs. I need to though. Its way over due. I have not checked calcium levels. You think that would be a good idea to do tomorrow? I can't think of anything that would be causing it. The light hasn't changed positions and the water levels are good. The only thing I can think of would be the hermit crabs and snails I have added recently. Other than the calcium thing. Any good ideas? It was growing soo good I don't want it to die off now.

Alkalinity, calcium and magesium all need to be in a good relative relationship for coraline to grow and spread..I believe calcium is most important, but the other 2 are related to how organisms will absorb the calcium.
If you plan on a reef tank, you must learn this relationship to be successful.
 

radiolotek

Member
Yeah the magnesium and calcium levels were very low. BTW. The guy who I got the tank from must have not kept very good care of it because since Iv'e had it and brought the water levels into normal I have seen so many things coomming to life from the rocks. He had it for 2 years and the rocks and glass were covered in green alge and he had nothing in his filter. Just a pad to catch big particles. Since Iv'e had it I have seen like 50 feather dusters(small ones)(a few getting quite big), the rocks are getting covered in coraline alge, and just 2 days ago I noticed a colony of zoos starting to grow. I have not added any of this stuff. I have one thing growing that I am not sure what it is. As soon as I can get a camera I will post it for an id. It is pinkish red and has branch looking growths comming from it. Still small tho but getting bigger.
 
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