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Discussion Starter · #1 ·
My Live Rock has a very pretty purple color on it. The Rock is Marshall Island.

Now, that purple seems to be turning white on the oldest rocks in the tank...by old, I mean the 1 week old rocks, the ones that were in the tank at setup. Since then. we have added more rock that still has the pretty purple on it.

Can anyone explain?

Just added Clean up crew yesterday, if that matters.

Thanks.
 

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Discussion Starter · #3 ·
Die off of...what?
Just did a search and it sounds like this stuff is coralline (sp?) algae.
Since this is a new setup, we have not been running the lights on any kind of schedule, just on a few hours in the evening.
However, today the light was on most of the day, and this evening is the first time I've noticed the color going away.

We have a Custom Sea Life Power Compact Moonlite on a 120g tank.
 

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it is corralline but it will die off from no light at all run the lights
and keep calcium level up and it will spread.
 

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TheMehal
Is your tank cycling? They often die off some during the cycle then make thier way back. Also most people have a hard time keeping the lighter colors.....the darker purple eventually takes over, especially in very highly lit tanks.

I have three or four rocks that were covered in pinks that are completely white now, while all my deep purples are doing fine.

Dave
 

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I have Mi also sometimes it does that sometimes it dont just run the lights and keep calcium up and it will return and spread over time.:)
 
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