Help identify- BTA or Majano

[billyrumpkin]

Hi- just set up a 90 reef. Used live rock from an established 100 gallon system. 5 days in and these little guys just popped up- please help positive id- both are larger than a quarter diameter and are about the size of a ping pong ball- thanks for helping.
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[billyrumpkin]

sorry- hope these pics attach correctly

 

[ndrwater]

Bubble tip... Lucky you!!

 

[billyrumpkin]

Thanks for the feedback- what makes the determination?

 

[Doge]

Majano anemones usually have thinner tentacles and are green in the middle.