Here's some great tips by John Benn.
How to Succeed at Breeding BettasBy John Benn
Having been involved in breeding bettas for many years, I can honestly say that it is one of the most fulfilling challenges in the aquarium hobby. Not only is the spawning process immensely interesting, but the results can produce some of the most brilliantly colorful freshwater fish you have ever seen. Once bitten by the betta bug, your interest in these fish will continue to grow. No matter what your level of experience, from a beginner learning the basics of animal biology to an advanced