So I've had this Midas/RD for about 7-8 years and for most of that time assumed it was a she. For most of that time she had no hump and remained lightly built but over the last couple years she bulked up and developed a hump. I know females can look a lot like males and even get humps so I really don't know for sure what it is. I recently bought an adult Midas/RD that I am pretty certain is a male. They are together in a divided tank. Am I attempting to breed two males here? Their breeding tubes look different so I still believe my older fish is a female but confirmation would be nice.