Unknown Macroalgae

[Suncat]

Can someone please tell me what this is? The green plant with long threads and slightly feathered at the ends. I got it from rusalty. I actually bought a fire red Macroalgae, but this made its presence known in a couple months of being in my tank. It's growing on the same rock. It's growing about 4-6 inches a week. I like it, but never saw it before, not even snorkeling around the keys. Yes, a juvenile seahorse. I raised a bunch.

 

[Stang67]

Almost looks like bryopsis but it's not.

 

[WheatToast]

Likely one of the many species of Cladophora.
Image by B.navez:

They do just fine as long as you got nutrients to keep them thriving, it’s not the best looking algae though but it’s a nice green addition to the tank. The only downside is that because it is so dense it can get full of detritus if keep in a low flow area.

https://www.kpaquatics.com/product/toadstool-algae/
https://www.live-plants.com/cladophora.htm
https://www.livealgae.co.uk/en/gree...ne-macroalgae-cladophora-prolifera-green-bush
https://www.plantedreef.co.uk/buy-macroalgae/Green-Bush-Macroalgae-Cladophora-Prolifera-p133292168

 

[Suncat]

Awesome, I think that's it. Thank you!