My Kenyi, (roughly 2.5"), just started doing this the other day... she tilts to her side and starts to shake. It looks as though it's an involuntary shake and lasts for 2-3 seconds. I just moved all the fish to their new home, from a 10 gal to a 55 gal. All the other fish seem to be doing great. Is there something wrong? Is there something I should/can be doing for her?