Dtnz
Trying to id this stuff growing over my rock
Its balck / brown in color blows off easily with a feeding tub and sucks up easily during water changes
Can clean it off the rocks today and 2 days later its back ai and local reef pages ( in new zealand ) havent been much help any ideas
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Super interesting. I am quite curious about this. Do you have a video of you blowing it off the rocks?
Can take one a bit later on and post it