my partner used to breed these, he had lots of fancies; if your talking the siamese fighting fish then you'll not have a pregant female. They are bubblenesters so when the females colours show she is ready for breeding the fish should be watched as they are introduced, the male no doubt will have been making his bubble nest watching the female, the male squeezes the eggs form the female and puts each on into his bubble nest , this bit is easy; he then guards his nest so the female needs to be taken away or sperated. the male tends to the nest day and night, first time the male is not as likely to get it, like all animals they get better with practice. so that is the easy bit rearing the youing fry is the real challenge....
Fisrtly some males may appear quite like the female, so beware of your choice fins do not tell everything.
There are many types of fighting fish and many good breeders as scources, Instead of taking forever to type this may I give you a few websites;
http://www.bettas.org.uk/forum/
these people will point you in the right direction and help. All i can say is that it take a whole lot of space, there are two tanks needed or a seperator for male and female. there is the theory you can take the male from the nest and seperate the young into jars, but my husband used a large tank and although losing some fish had good success leaving the young with the male. The amount of cleaning required was beyond me.
I have to say it was very rewarding for him and I wish you luck, but it's not as easy as guppies and mollys
