I didn't know about this particular way of fish breeding, I sincerely believe that it is a great alternative, because its characteristics allow it.
It is good to know a little bit about everything. This besides allowing to have a good source of protein at home, can allow to have an extra economic income.
But it's good that you are shortening @juanmolina's recommendation regarding themes and giving a more targeted approach to Project Hope's subject matter.
RE: Breeding Cachamas in small spaces