Mystery hydroids in aquarium

Description and Comments

Found these hydroids growing in my aquarium recently. The aquarium houses life from Charleston, SC. I also put some Floridian Cassiopeia polyps in the tank a few weeks ago. I don't think that is the source of the hydroids. I know it is hard to tell the species, but any ideas are welcome. I'm not sure if these produce medusa yet, but I am hoping! If they do, I'm thinking they are Nemopsis bachei, just by how common they are here.

Author

Type of organism

Other
Hydroids

Quantity

11

Latitude

35.40

Longitude

-80.75