Peps swimming upside down?

[DetectiveTofu]

I just picked up two peppermint shrimp (Lysmata Wurdemanni yesterday. So far is looks like they're doing okay; wandering around and everything. One f them is even pregnant I believe! However I did notice that sometimes they swim upside down from time to time, for about a five second period of time. Looks like they can control it, however I just wanted to make sure. Opinions?

thanks in advance
RF

 

[Sk8r]

normal. they're shrimp. They don't know which way is up.

 

[650-IS350]

Mine used to do it everytime at night...when I was checking the tank with a red flashlight

 

[DetectiveTofu]

delsol, that's exactly what I was doing.
Actually, I looked into my tank this morning and noticed some of my aiptasia gone...that or the aiptasia loosened their pedals and ran from the peps (which I doubt =)) Hopefully they continue to mow the aiptasia's.

=)

 

[ERB82]

Haha yeah thats what shrimp do! I have two peps and one of them ALWAYS has a bunch of eggs. About once a month or so I'll find a ton of baby shrimp crawling all over the glass and rocks. They only seem to last a couple of days though.