Pep Shrimp swaying?

Mine do it.
It reminds me of little girls playing advanced types of jumprope- when you're trying to zone into the proper rhythm to jump in on? You just sway a few times to get it right?

My guys all hang upside down in a row under a rock overhang when they do it. I thought maybe the current was too strong but I don't even have the closed loop running yet :confused: :confused: :confused:
 
mine sway to I've noticed that their moutparts tend to move overtime when doing so. I wonder if they could be trying to filter feed? From what I've seen they do it more when I've just added food to my tank.
chris
 
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