I’m sorry I can’t help you on the middevil for lack of knowledge but I’m sure the flowerhorn is male though I see why you could be confused (An awesome one what at that. What a solid zz Red dragon strain). Although he has the double flowering which is more commonly seen in females but not necessarily a female trait he doesn’t have any flowering on the dorsal which is usually a dead giveaway for a female flowerhorn. Safe to say male.