I have two flames and one of them loves to sit in the sun. It's too cute. Whenever the platies or guppies come over, he chases them away and goes right back to sunning. I tried to get a picture and it came out blurry. Just wanted to share.
Yes, my little male dwarf flame gourami lights up like a red/orange light bulb in the sunlight. I can't say he purposely hangs in the sun though.. He's a real punk. Nasty little guy.