White spots on live rocks.
- Thread starter whitemike
- Start date
N
nereef
Guest
when coraline algae dies, it turns white. you didn't rinse the rock with fresh water did you?
N
nereef
Guest
my guess is dead coraline. it doesn't last long out of water. unless you held the rock under water the entire time you were scrubbing, then some probably died. it's also possible that the red slime on the rocks choked out the coraline, and you didn't see the remains of the coraline algae until you scrubbed the slime off.
a picture would, however, help to answer in absolute certainty.
a picture would, however, help to answer in absolute certainty.
whitemike
Member
Thanks man thats what happened. Cause I remember I was cleaning it out of the bucket for a few seconds so that probally how it died. I read here to clean it in salt water I just thought it wouldn't be that big of a deal to have it out of the water for 15-30 sec's my bad, but thanks for the help. 
N
nereef
Guest
it shouldn't be a big deal. coraline will regrow in a healthy system.
there is actually a line in my tank where coraline doesn't grow. it's on the top couple of inches of the tank, because that is how much is exposed to air when i do 10% water changes.
there is actually a line in my tank where coraline doesn't grow. it's on the top couple of inches of the tank, because that is how much is exposed to air when i do 10% water changes.
anonome
Active Member
I find that my corraline is a good indicator that my calcium level may be low. When I fail to test every week, like I should, and my corraline takes on a different color I instantly start testing. Boy, they sure don't give you a break!!I have alot of coral in my tank which uses up a lot of the calcium, then add the macro algae, I find that I am constantly testing for something.
As far as scrubbing your rock, I too did that when the red slime was out of control, but I have found that if you keep the calcium level up,as well as the alkalinity, the corraline will regrow quickly.
As far as scrubbing your rock, I too did that when the red slime was out of control, but I have found that if you keep the calcium level up,as well as the alkalinity, the corraline will regrow quickly.
