Which Snake Should I Get?

ok so i have an aquarium that measures 24" long x 12" deep x 15" high and i was wondering what snake should i get- a kenyan sand boa or a western hognose, i heard these snakes can stay in this tank for their whole lives. so which snake is better. could you give me some pros and cons of these snakes. thanks. i'll use aspen as a substrate and a heat mat with a thermostat because none of these snakes need heat /UV lamps so yeah, thanks just a list of pros and cons would be good.