How do Myrionema hydroids spread?

yehudap

New member
How do Myrionema hydroids spread in an aquarium? Do they just spread from their starting point, or can colonies spring up somehow in other areas of the tank?

Some showed up on an anthelia rock I puchased, and I think they're kind of cute. If I can keep them restricted to a single isolated rock, I'd like to keep some.
 
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