Rock turning Green

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Petalas82

Aquarium Advice Apprentice
Joined
Mar 23, 2012
Messages
33
Location
Indiana
I have a new saltwater tank with just snails and crabs. I have 3 live rocks and one of them has a smooth green/yellow stuff growing on it, it looks like guacamole. Is it just algae or something I need to fix ASAP. If I need to fix what do I need to do. I have attached a pic hope you guys can see it in the pic.


75gal
Fluval filter
Live sand
Live rock
 

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