I bought a new frogspawn today from my lfs
and when I was placing it in the tank all the polyps shrunk temporarily as expected and I saw a weird looking thing like in the pictures. It has a weird looking hand that comes out, it looks like a weebed small hand can see in the picture when it is inside. It goes out and does a scooping motion and goes back in. Can anyone tell me what this is and if it is harmful to my new coral?
thanks in advance!