Vertical scaling
If you are constrained by space and want to grow different plants that require a different nutrient/water profiles in the same grow tent/green house you can simply add more dosers/pumps to your existing environmental control unit (ECU) and configure unique schedules to cater to each type of plant.
Horizontal scaling
If you are expanding your production, you can use your master ECU to control multiple grow tents/greenhouses, wirelessly even! You simply need to add a wireless remote controller unit into each additional grow tent/greenhouse that has an electrical outlet and plumbing set up and configure it for the plants to be grown there.