Thanks for all the complements.
I feed them a very boring diet, namely frozen blood worms every second day and sinking pellets in between.
I do tend to over feed them and for that reason have some mystery snails in with them and they tend to grow so fast that I have to change them over every month or so
Anyway, as far as the cheek odontodes and leading pectoral fin odontodes. I tried to get side photos but they did not work out. But none of them are showing any odentodes on the leading pectoral fins and all the zebs look the same as far as the cheek odntodes goes.
I am told that when you see a male it really is a male and none of my zeb's fit this description.
When I first started keeping fish I was blessed with all female bristle nose, like about 10 of them, and I am siting there thinking 'why are these fish called bristle nose'. Must be something in the water
So I guess the wait continues. I have been growing these for about 3 years so the females would definitely be mature enough to breed.
Cheers
Andreas