Help identifying

[Hp1836]

I have a spare small tank I set up to Raise Gamarrus Amphipods in to feed my main tank. However something is growing on one of the rocks. Does anyone know what it is? Is it a problem? How do I get rid of it? I do not think it is aiptasia

 

[Tumey]

Pics kinda blurry but it looks like some healthy and happy corynactis anemone. Won’t hurt a thing if you let them enjoy sharing the space with your pods!