At a friend's house once, a startled P. nicholsi darted and "pinged" off the aquarium glass... the result was much as you describe. Martha ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. apisto-digest@listbox.com also available. Web archives at http://lists.thekrib.com/apisto