How long will anemone hide?

[6eteeth]

My anemone went down under a rock about a week ago, split, and neither one has come back out yet. Both still have good color and bubble up nicely. What's the longest one has stayed hidden?

 

[davocean]

What lighting do you have?
Tank history and params would help.
Hiding is not a good thing, I'm wondering if it was under weaker light when you purchased it, if so screen netting is good for acclimation.
Splitting is common when intro'd to new tanks/params, they tend to stress.

 

[6eteeth]

You called it. I originally had it in a 55gal with t5 and now it's a 210gal with reef breeder photons. For the first 3 weeks it looked pretty content, then it just moved and split. They haven't moved but are still bubbling up quite a bit and the clown is going between the 2.