They might be breeding (black skirts)?

[bethyMT]

I've had the black skirts, eight of them, for several months now. And I think they've reach breeding age, because I have been seeing some strange behaviors out of them lately. Tank params are 79F, pH 8, moderately soft water (general hardness is high, but pretty low carbonate hardness), amm0, trite0, trate between 5 - 10. I do WCs at least twice a week of roughly 30-40% each time.

Here's a summary, please tell me if this sounds like breeding, or if I have another problem in this tank:
1. Big difference in size between males and females...think it's split 4 and 4
2. Increased nipping amongst each other
3. Males are doing weird "dances" sometimes, swimming sideways and bending sideways too, with crazy flapping of fins. Seriously, I thought they were having seizures.
4. Females are fat (and sassy), and it's not due to overfeeding

So, your thoughts? I think breeding(obviously), but I'm really good at being wrong, so I need some help. Are my nippy babies grown up?

Thanks!!!

[Lady Hobbs]

Breeding activity is nearly always in the mornings. Lots of chasing with sometimes two or three males after one female. As soon as they spawn, they will eat the eggs so you will not have fry unless you set up a breeding tank and remove the parents as soon as spawning is done. They will spawn on an upright plant or breeding mop.

The small ones are the males.

[Indian Woods Angels]

The tiny fry will eat a product called Sera Micron. It is really easy to use, it's a powder.