Is this a beneficial macro algae?

[CrisisReef]

Hey guys! I recently broke down an old tank of mine that I kind of let go for a while. Moved all the corals and fish to a new tank. In the old tank I discovered a clump of what I guess to be a kind of algae. I threw it into the new tank along with the corals just until I figure out exactly what it is. I’ve done a little bit of research and can’t seem to figure out what it is. If anyone could help me identify it I would really appreciate it. Sorry about the picture quality, but the clump can be seen just to the right of my coral.

 

[Tanster2]

Could you post it with whites? It's a little hard to tell. By the shape, it could be a gracilaria. Very hardy and grows in sort of clumps.

 

[CrisisReef]

Could you post it with whites? It's a little hard to tell. By the shape, it could be a gracilaria. Very hardy and grows in sort of clumps.

 

[Tanster2]

Looks totally different under whites, thanks! Possibly Dictyota, but not totally sure. Does not appear to be gracilaria, as it is usually green or red.

 

[CrisisReef]

Looks totally different under whites, thanks! Possibly Dictyota, but not totally sure. Does not appear to be gracilaria, as it is usually green or red.

Well thank you, people online seem to think it’s kind of a pest so I hope I can get it out of my tank before it’s too late.

 

[jcook54]

I've seen it before and can't recall what exactly it is. I agree that the general consensus is that it's a pest but I've had it in one of my tanks and I never did anything about it and it went away. If memory serves it sticks on there really good.