What are these little trees?

[AmandaRaeJean]

They came on some rock I got from my Lfs. Just making sure they aren't bad.

 

[KJ]

Look like GSP (Green Star Polyp)

 

[Reeferdood]

Green Star Polyps, beautiful but a real PITA.. keep that rock all alone or eventually it will choke out everything in its path...

 

[AmandaRaeJean]

So if I plan to start putting coral in my tank, it's a Fowlr tank right now....it would make it difficult?

 

[Vincent100]

It could if you have the rock next to another rock were it can spread ,if you have it on its own like a island in the sand than its trapped and can't spread
I gave £40 for a rock of it , some people love it

 

[Reeferdood]

It could if you have the rock next to another rock were it can spread ,if you have it on its own like a island in the sand than its trapped and can't spread
I gave £40 for a rock of it , some people love it

I have seen it spread across substrate as well..
Just keep a watchful eye on it...

 

[Vincent100]

Yep that's true but it's alot easy to deal with
You can just cut the bit off that searching for rock