Are these pest anemones or innocent featherdusters?
ok! what is this?
Tank has been up and running for about one month now. The live rock was previously live and in a tank or two but has sat for years dry in a storage container. I cycled the rock in a brute trash can for a few months and then brought it into the tank. The tank saw very little cycle. I recently added a few pieces of coral to the tank. Duncan, Frogspawn, Zoas and Fungia. The tank also has various snails and a few hermit crabs.
The "stuff" in question is this:
And here is a video:
https://youtu.be/wvZks38_MGI
I think (it's hard to tell from the oic) that the pink think is a sponge and the polyps are probably palys. At $20 for 4 pounds in Boston, that's probably an OK deal. Really good LR from local club members here in SW Florida is more like $3 or $4 a pound.
This rock had some algae on it, the snails made quick work of most of it...now there are these little greenish things, some have holes in them...any ideas? The color does not look like the same green as the hair algae...
I hope I can get your help identifying these strange white tendrils growing on my glass and the back wall of my biocube.