[zo1]

They self-regulate in terms of food, assuming they have enough space. So if you don't generate enough food, their population dwindles a little bit. But I'm pretty sure a small household would be able to generate way more than what a reasonable single bin can handle. Especially if you eat fruit. Just a few banana peels and you're sorted for like a week! Also, remember they eat paper and other bedding which goes along with the food waste.