Hello - My tank has just shy of 3 months old. The last couple of weeks I am starting to get this type of green algae blotches on my rocks. Anyone know what kind this is? Many thanks!
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The overall greenish coloration may be a micro algae. The near circular colonies are not in focus when I enlarge them. I can’t see the structure, e.g., is it filamentous. The odd thing to me is its low form. Is it green hair algae that was mowed down by a snail. Sorry, that’s my best guess.Sure. Here you go. Thanks in advance