Red growth on my LR

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Firemedic1081

Aquarium Advice Regular
Joined
Mar 17, 2011
Messages
86
Location
Ohio
Any guess what this stuff is? Not the polyps. :) Is there a red coraline algea?
 

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Sorry about that. I wasn't very clear. That should have been two seperate questions. The first was a question about the bright red spikey things towards to top of the rock. I found a picture of what I think is them. Foraminiferans. The second question should have read: Is there a red coraline algea of will this purple?
 

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Yep. Foraminiferans. Typical in the aquarium. Hard like coralline, and they come and go as nutrients are available.
 
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