Urgent help needed Nennie

[Brians]

My nennie has started suddenly doing this, must I remove it from my tank asap.
Thanking you in advance

 

[Dexter]

looks like a magnificant anenome. They incredibly hard to keep. They need plenty of light. What light do you have in the tank? Its climbing up the glass becuase its seeking light. Its going closer to the light. But it's not a good sign. it might end up in a wavemaker. Is the wavemaker nenny proof?

 

[Quintonv]

It looks like it is spitting its insides out? cant really see from the pic.

 

[RiaanP]

As mentioned by @Dexter What lights do you have? Most anemones needs proper lights, although Bubble tip anemones do not need such intense lights. Also a lot easier to keep happy.