kelp looking stuff good or bad?

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BBReef

Aquarium Advice Freak
Joined
Aug 6, 2003
Messages
412
Location
So Cal
we have this stuff growing from our live rock that looks like kelp. it is pretty small, but is now a forrest on one rock and scattered on others. what is this stuff? and is it good or bad? i think it looks kinda ugly and would only keep it if it is beneficial. any ideas?
 
kinda but not really the shape of the blades look similar, but it is brown, doesnt have little ball things, and doesnt have a long stem. it just looks like blades growing out of the rock. they are still pretty small though, so i guess they could grow int something like that. i dunno :(
 
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