Rock flower anemone

[psw3468]

Have currently 5 RFA's, 2 on the right side of my biocube 32 and 3 on the left. Before lights come on in the morning yhe 3 on the left side are stretched out 2 to 3 inches while the 2 on the right side are flat and opened wide. What causes this and should i be concerned?

 

[Mr. Mojo Rising]

I will offer my opinion based on my own tank…. it’s now summer and the sun is out earlier and my corals and RFA’s stretch towards the window where the sun shine through early in morning before the light turns on. They can sense the light and stretch toward the sun but when my light turns on they return to normal. I see this every year in my tanks in summer time.