There is no 'easy' way of breeding them. It takes time and money (and a lot of space) invested to breed betta.
Things you need to successfully breed betta fish:
~Larger tank ie 20 gallon long or greater for the breeding/spawn tank
~A variety of meaty, high-protein foods to feed to your breeding pair to condition them before sticking them together. Bloodworms, fruit flies (and their larvae) and mosquito larvae are common foods I hear used. Unconditioned bettas normally will not spawn, instead, they will beat each other to a bloody pulp.
~Heater(s) to keep the breeding/spawn tank at appropriate temp. Too cold and most of the eggs will not hatch, and the few that do will likely have difficulty properly developing their labyrinth organ as they grow, and so will probably also die.
~Fry food - no, betta pellets and/or flakes will not work, they can't eat it yet. You need microworms, infusoria, vinegar eels and/or other microscopically small LIVE food sources for the betta fry that will need to be cultured in advance or your fry will starve to death within the first three to five days.
~Grow out tanks for all the male betta fry. Lots of 'em. Every single male will need to go into it's own tank once you can determine it's a male, otherwise they will start fighting their siblings and killing each other. These tanks should be at least a gallon in size and also need to be heated adequately.
And need? You don't need
to breed betta fish. You want
. There is a difference. Lots of us want
to breed bettas. None of us need
to breed them.
Amones369 - Betta fry will begin taking on adult finnage somewhere between 2.5 and 3 months of age normally, and it is generally by this time that most breeders recommend you separate the males out. By this time you should be able to spot the oviposters on the females, and the males will be growing out longer finnage and begin showing aggressive male traits like flaring. The male should be separated out as soon as you can safely confirm they are male at this point in time, or they will soon fall to attacking each other for dominance. I have heard that some breeders do not even like leaving any of the fry together, and around this time EVERY betta from the spawn gets its own tank, male or female. Most breeders seem to think that it is okay to leave most of the females toghether for a while though, and that it's just the male that must be separated.