how to make my anemone bubble?

[ponda]

They look to be fanning out almost. Had these 4 rbta in my 29gal biocube.
150w mh lighting. They are all on the top rock and getting tons of light.
I feed them silversides twice a week

How do I get them to bubble like how when I originally purchased them?

 

[ponda]

 

[shifty51008]

You may get alot of replies but the truth is noone knows for sure the reason, as long as its healthy thats what matters and yours looks good