Coraline Algae.

[sgc0286]

Hi! I bought a 2.5lb live rock last week, and it was COVERED with coraline algae. The color of the algae has now faded to a creamy white color. Does this mean there is something wrong with the quality of my water, or is this a common occurence?

 

[dannyb]

Yes. Most likely your calcium levels are down. But also could be your lighting..

http://www.aquaristsonline.com/blog...lcium-reactor/how-to-maintain-calcium-levels/

 

[melosu58]

What is your calcium, alk and Magnesium numbers? I know when I add LR to the tank it will turn white but come back with a vengence.

 

[sgc0286]

Calcium Level is 440ppm.

Lighting: 2 aqua rays 15W 18" lights, and 1 Marine Glo 15W 18" (actinic)

I do not have a test kit for mag, or alk. (I know I should, where would you sugguest I get them)

 

[melosu58]

Do you have a LFS around that can test it for you?

 

[sgc0286]

Yes, I think the one down the road will do that for me. How often should I test for alk, and mag. Would it be worth buying the test kits?

 

[melosu58]

Yes always worth it. I use the API test kits. Get the liquid ones and not the test strips.

 

[sgc0286]

Okay. Thank You.
JW how long does it usually take for your LR to bounce back from the white color?