*no pic filters, lighting tricks, or anything sneaky! 100% natural! l was amazed when I saw a big male auratus moved under a low tank with better angled lighting, and it immediately peacocked! I thought it might be some unusual auratus, but when I did a search I saw a number of males with rainbow colors. I have to say, I still haven't seen any that are as colorful is this one, but I'm still amazed I never saw their rainbow colors!