True to form, the Gu Ka'an bloodlines are good ones, only one I know to have developed DE, nevertheless his Silver color is gorgeous. Mine spreads his "wings" and take his left pectoral fin and slaps at the water when he's mad, like a little kids throwing a fit and reaching out to smack something. Thanks for teaching me what an "Arowana" is, I can't imagine life without one. That's one of those priceless gifts.