What is it? growing on a few pieces of my Live Rock. Also the purple on top left is starting to grow but I think that is alge
If you are asking about the greenish/grayish stringy stuff, it looks like something I had in my fw tank in the beginning - hair algae.
Definitely some kind of algae. Looks a little like bryopsis but hopefully it's just plain old hair algae.
Looks like green hair algae to me, especially since your tank is new. I wouldn't say it is bryopsis since it doesn't appear to have a fern shape to it.
Yea I believe that's all it was I added few crabs snails and an emerald crab last week it was gone over night.