WWC Bounce shrinkage at night normal?

[Maximus]

Hey guys, I just bought a really nice WWC bounce with huge bubbles and I've noticed that the bubbles deflate and shrink at night. Is this normal? I would assume it is but nonetheless, I would like some reassurance. I have had some bad luck with bounces over the years. Currently, it's in a cage so nothing could be bothering it. Thanks!

 

[adritank]

Yes. It's completely normal

 

[nautical_nathaniel]

Most corals, anemones and such that use zooxanthellae for a food source will shrink up at night since there's no reason to have a larger surface area for light gathering

 

[Maximus]

Thanks guys, makes perfect sense!