Hi diver21
I used to breed these little guys years ago, they are very easy with the right conditions.
The adults condition easily on bbs or Decap.
Water should be rain water, Ideally a little cooler then the tank they cam from, peat is not required for these guy's but can't hurt to have it.
Cooler water when the fish go in, it doesn't matter if it warms up a little over night - cool simulates rain.
Ideally the water you condition them in is not rain water, the change helps trigger spawning .
Introduce fish to tank as TM said.
I used spawning mops (3 big mops ), spawning moss is good too.
Tank should be dark but does not have to be blacked out as their eggs are not so light sensitive as neons or cardinals.
You want need a spawning trap of any kind if you are home the next morning, fish will need removing by around 10am.
You can clearly see the eggs
The female will thin out
The fish do a barrel role as they spawn releasing the eggs at 75deg spraying the eggs into the mops/moss.
I think that's about it.
Forgot to mention the fry get very hungry for food @ 1 - 1.25cm +, if you don't feed them enough they will fin nip each other making them look ugly.