Both of my Endl.'s do this, after they eat, its as if they sucked in air bubbles, and they cant control there swimming problems. It only happens after they eat the pellet stuff, and they start doing this but gets back to normal soon after. Is this something I should worry about? Looks cute but rather be sure and not get a dead guy. ---I apologize for not posting photos, my phone is terrible at getting a nice shot, tried many times, but the video is always good guys, so please enjoy and inform me. Always appreciate it!
http://www.youtube.com/watch?v=78R-dey9qX4
http://www.youtube.com/watch?v=78R-dey9qX4