Maybe its because I've never seen them so close, but those look like they've molted already. The fresh hatched ones are almost squared off rather than enlongated. Join the AKA at http://www.aka.org/aka/modules/content/index.php?id=9. Archives are at http://fins.actwin.com/killietalk/ Modify your subscription at http://www.actwin.com/mailman/listinfo.cgi/killietalk