Are these LTA's or BTA's?

[ernieq]

I've never been quite sure. I inherited this tank from a friend of mine. He told me there were originally 2 anemones about 4 years ago. When I got it, it had 4, now it has 8!!!

 

[deangelr]

Bta

 

[Winwood]

BTAs

 

[ernieq]

thanks, I thought so too but wanted confirmation.