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  1. General Reef Discussion
    Is there a difference between filamentous algae and hair algae or are they the same thing?
  2. General Reef Discussion
    This is like "Invasion of the Body Snatchers"! There are long, thin green tendrils that are coming off my rock and reaching out, infesting other areas of the tank. Is there something that eats this? My snails aren't doing it.
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