MaeganWink December 9, 2019 Share December 9, 2019 My students noticed these worm-like organisms on one of their mushroom corals today. Any idea what they might be and if they're harmful? Link to comment Share on other sites More sharing options...
lynn.reef.nerd December 9, 2019 Share December 9, 2019 That's the mesenterial filament. I normally sees this in mine when it is stressed (handling, moving, etc.). Link to comment Share on other sites More sharing options...
ReefdUp December 9, 2019 Share December 9, 2019 Agree - although sometimes they also come out as part of the feeding response. Link to comment Share on other sites More sharing options...
treesprite December 12, 2019 Share December 12, 2019 I see it when shrooms are irritated or stressed. Link to comment Share on other sites More sharing options...
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