Seaweed?

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Hi - can you tell me if this seaweed growing on the rocks is a good or bad thing and what I do with it?  One is green and the other brown.  Thanks

Mike

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Reply #1

The branch looking stuff seems to be Gelidium, Red Wiry Turf Algae.

See here: https://www.reefcleaners.org/nuisance-algae-id-guide

Also the green one is Ulva Lettuce Algae.  :glad:
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