We're gonna hafta agree to disagree on that terrible music....

I've never used a 15g aquarium, but I don't see any reason why it wouldn't work. Seems like a nice size for this kind of thing anyway... I don't use a heater, and you shouldn't need one assuming the temp in the tank stays between 72 and 86 degrees F. My upstairs tank room tends to stay at about 72, and with a light (desk lamps work, but if you have a hood/light definitely put it to use!), the water is generally around 75-77.

I would get some kind of substrate first if you are planning on doing more than one life cycle, as it makes collecting those tiny eggs a lot easier. And make sure the pH (and other levels) don't go crazy when you add your sand, soil or gravel.