I have some stuff growing and crawling in the tank and have no idea what it is. So I took some pictures (finally got my camera back) and post it as a quiz for you.
Hope you can help!
(1) Fire Worm? Is that a good thing or bad thing?
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(2) Bubble Algae? should I remove it? or only if it spreads more? how to remove it?
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(3) some sort of coral? or what?
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(4) feather duster?
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(5) haha no idea at all ...
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