your males are very cute. (: but, most people say if you're low on money, you shouldn't get a betta, or any fish for that matter.
the way that it's divided, it's not that much bigger than the cup they came in, and with the clear divider, it's pretty stressful to be able to see the other male 24/7 with no hiding places or plants. plus, you have to make water changes around every 2 days.
most people spend $50+ when getting a betta, because of its needs, a tank at least 2.5 gallons, a heater, a thermometer, plants, hiding places, water conditioner, etc... like i said, if you're low on money, save up and do research before you get a betta.
i'm sorry if this is a lot, but hopefully you'll be able to get them a better home soon.