what does this mean？

[mimiboy]

one of my H.MAG anemone suddenly shrinked like an apple and after nearly an hour it just got back to the expanding shape . I've seen them do this in the wild when I watch some documentarys.But I really want to know what this means！[emoji16]

 

[NY_Caveman]

one of my H.MAG anemone suddenly shrinked like an apple and after nearly an hour it just got back to the expanding shape . I've seen them do this in the wild when I watch some documentarys.But I really want to know what this means！[emoji16]

Looks like he caught something and ate it.

 

[NY_Caveman]

Nice specimens BTW.

 

[mimiboy]

Looks like he caught something and ate it.

No.it only uses its tentacles to swallow the food instead of totally shrinking like a circle when I target-feed it.

 

[James M]

I agree. Caught something

 

[rkpetersen]

Anemones sometimes just do this. As long as it is transient, like an hour or two, likely no big deal.

 

[vetteguy53081]

Not abnormal; and can indicate
-Pooping
- Eating
- Lights too bright
- irritated by tank occupant

Amy of these causes will be temporary and of No harm