Lime green color on live rock !

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JDM SigEp Z33

Aquarium Advice Apprentice
Joined
Nov 30, 2008
Messages
12
Location
Miami, FL
Hey guys I have this lime green color coming out on my live rock is this normal !? Should I have my water tested !? Your help is definitely needed !
 
Coralline algae (a good thing) can come in lime green when it first starts appearing. Assuming it's not hairy and is just a hard blob of color, my guess is coralline.
 
kool thanks alot ! if i have that cming out i should definitely leave it under the light right ! so it can get the purple or red ??? it definitely not hairy !
 
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