How to determine discus sex

[Shehzada]

Hello folks,

I am desperate to know the most authentic way to determine the sex of discus fish before buying a pair.

Help please.

[bluelagoon]

Some males look like females and vice versa. Males have longer streamers on their dorsal fins and females are usually rounder. The vent in a female is blunt like an eraser and the male is like the pointed end of a pencil. The only exact way would be to watch and see if the eggs hatch. Sometimes two females will mate.

[Mando]

The other thing I've noticed within my own pair is that the male tube section is a little sunken in while the female has a nice oval shape outward. If I find a photo I'll upload it.

It's very hard to tell though. I have trouble guessing it for my other discus.

[RogueDiscus]

If you enter "sexing discus" into the search window near the top of the page, you will find many posts on this subject.

[danotaylor]

If you are buying a pair ask if they're are "proven" meaning they have had fry at least at the wiggler stage. Pictures from theseller would confirm that status.