Is this a good or bad anemone?

[kedabo]

I just saw this anemome in my tank for the first time today. I was moving around my LR to make sure I got all the pieces of my dead serpent star. and there it was. I cannot tell if this anemone is something I should keep or get rid of. Here are the pics, if more are need I can provide them just ask.

 

[dogstar]

Aiptasia sp. It could get bad. They often multiply quickly. Best to kill it.

 

[crox]

Kill it right away!!!! :scared: :scared:

 

[onyxclown]

maybe a mojano or w/e u spell it but i see no bubbles either that or aipistatia kill it anyways

 

[kedabo]

I used Joe's Juice. Man that stuff works great. Real quick and everthing else in the tank is fine.