Bungy
Fish Crazy
I currently have 3 x female Betta's and 1 male in a 70G (377L) tank - they live together very nicely indeed and only the females flare at each other on the odd occasion. I bought them approx 5 months ago from the LFS and have since grown to what I would guess to be adulthood - they show the white spot underneath close to the anal fin which im told denotes sexual maturity. I often see the horizontal bars but to date I have never see any vertical bars - this being my trigger to move to a small breeding tank. I have seen vertical bars on much smaller females in the LFS.
How do I know when a female is ready to be introduced to a smaller breeding tank with the male?
How do I know when a female is ready to be introduced to a smaller breeding tank with the male?

water parimeters will still help, if you could post those up.