Manifest_reef Posted December 20, 2019 Share Posted December 20, 2019 I have these small clear tentacles growing on my rock. Some even have tulip shaped cups on them? Is this the apocalypse? Someone please ID if you can! Quote Link to comment
Tired Posted December 20, 2019 Share Posted December 20, 2019 Some kind of tunicate or sponge, probably. Very likely harmless. Do they respond to touch at all? Quote Link to comment
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