green bubble on rock

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eddiedellz

Aquarium Advice Regular
Joined
Jul 23, 2004
Messages
68
Location
brooklyn ny
i have whats like a greeen bubble sphere looking thing on a pice of my live rock its about the size of a dime i was wondering if anyone knew what it might be?
 
Good ol'e bubble algae (Valonia sp) more than likely. I have it too. You can remove it fairly easily if you simple grab it carefully with your fingers and pull it off the rock. Be careful not to break the bubble, however. It will spread a lot quicker if the algae spores inside the bubble get loose.

I can't figure out how I got mine. Perhaps it came in on my LR. I use RO/DI water and feed fairly sparingly, yet I have quite a bit of it. I recently put in some emerald crabs (these supposedly eat it) to see if they can put a dent in it.
 
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