Is this a BTA?

[Kelly3s]

Hi all. Been a while since I have been here.
I haven't added anything new to the tank in over a year. I have 3 large RBTAs. I noticed this today. It is about the size of a dime.
I know anemones split, rather than have "babies". Is it possible one split this tiny? Or is this something else?

Thanks!

 

[danreef55]

Yes that is a BTA congrats

 

[D-Nak]

It might've been a split that got lost in the back or bottom of the tank and didn't get enough light so it bleached and got smaller. Anemone oftentimes change size based on their environment. If they're getting a lot of light and/or food, the typically grow. They'll get smaller in size if the opposite happens (or there is an irritant in the tank).