Looking for a confirmation

[tofer]

Found  these in my tank  was looking for a confirmation on  them . I believe they  are ball anemone. 

Not the greatest pics but think that will do.The one showe what it looks Ike with the moonlight on . 

[jservedio]

First picture is useless, but right side of second looks to almost certainly be a nem of some sort. No way to say what kind without a better picture. If you didn't put it I there, it's almost certainly a pest. 

[SaltyBuddha]

Looks like ball anemones. Some people say they are harmful to coral and others don't have any issues with them. You can kill them with Aiptasia-X fairly easily if you need to. I think they multiply slowly so they shouldn't take over your tank quickly.