well, we're using biological control all the time - snails to control algae, for instance. Bacterial colonies for the nitrogen cycle, etc. So, the idea of biological control is nothing new. And as long as the sundial snails have nothing else to eat, they should eliminate themselves when the zoos are gone, correct? Like when you get an explosion of bristleworms when you have a detritus issue and then when the food source is gone, they naturally just scale themselves back (by dying I guess!).
|