How to sex discus for sure
(Male and Female Breeding Tubes)
By Luc Laureyssens
There is much discussion about 'sexing discus' but as I was told the only
positive way to 'sex discus' is to see with your own eyes the breeding tubes
of the fish. Since spawning discus are camera shy, I had to get these photos
from two separate pairs of my fish. The female of one and the male from
The female in these photos is a Blue Diamond/Blue Cobalt who was paired
with a Royal Blue male who was very camera shy and never let me get a good
photo of him. The male in these photos is a Brown who was paired to a Pigeon
female who was very camera shy and did not allow clear photos either.
From the large photos you can see how small the breeding tubes are
compared to the overall size of the fish. The close up photos allow you to
see what you will see when they spawn and if you are present at that time.
This is the one absolute way to "sex discus". This does not indicate
fertility of your discus, only the sex.
From the photo labeled "Male" you can see how thin and "pointed" the male
tube is compared to the " blunt and wide " female tube in the photos labeled