Please, please listen to us Mac ~ why even ask questions if you're not going to consider the advice??
I am currently spawning 2 Bettas, as we speak. I've been sitting in the spawning room almost since the second I put them in there ~ I even ate in there
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!! They are in a large, shallow 10 gallon with 15 large, expensive live plants in and hiding places. The male has already put at least 3 GOOD nips on the female ~ they go back and fourth flaring at each other and attacking each other, except when they're under the nest spawning. ONLY when they're spawning are the female and male half-way decent with each other ~ otherwise they're basically out for blood. Neither of them has slept, nor do they have any interest in food, and they're both getting exhausted. Keeping a male and female together is ONLY for spawning!!!! I cannot emphasize this enough, they WILL kill each other, especially if they do end up spawning when you aren't paying attention to them, the male will most definitely try to kill her to protect the eggs.
I'm thinking of posting a video to show you exactly how aggressive these fish are, particularly the boys. Females ALONE are highly territorial and only special, super docile females should be kept together. I would NEVER put my spawning female in a community tank, because she's quite dominant and would probably be constantly picking on other girls.
I personally do not think you're mature enough to keep ANY Bettas together, even in a female community. You have to be mature and logical enough to decide what females would work well together, not just throw them into a tank together because you want to. I'm 17 (which I'm guessing is around your age), I take full responsibility for my fish and I would NEVER put them in a deadly situation just for my convenience ~ I knew that when I was 12 ~ and I think you're doing exactly that, putting your Bettas into a most likely deadly situation just so that you won't have to buy 2 tanks or whatever. Here's an idea... why don't you get a 2.5g or whatever, put a nice sturdy divider in (which will cost you about $3, hopefully that isn't too expensive for you...) and
then you can have the female and the male in the same tank and safely on seperate sides!
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It'd save their lives!! You need to think about these animals, fish might seem like feelingless disposable things that you can toy with just for fun or for convenience, but they deserve a happy life just like any dog or cat does. Male Bettas WERE NOT MEANT to live with other Bettas! Holy freakin crap. I don't know how much more we can say this... would you keep a male and a female Tiger together 24/7 in a cage? NO. They're solitary animals, only coming together to mate and then going on their way. It isn't fair to keep them together for life.