When using CFLs, divide by 150. For example, using a 400W CFL: 400W ÷ 150 = 2.6 or 3 plants LED GROW LIGHTS When using LEDs, it is best to consult the manufacturer for the recommended number of plants to grow and the optimal distance from your lights to your plants' canopy. Reputable manufacturers usually make this type of information available. Just in my mind 4 x 15L is a 40% loss in root medium which is a massive amount so I would just feel happier starting with what I before so there should be no yield drops. ie you wont be pushing a 25L pot to do 9oz but it might be the upper end of a 15L (not sure in coco). All these products are designed to protect and optimise your heating or cooling system. These products are normally positioned as follows: PRO TIP: If uncertain about how many plants you want to grow, it's always better to keep it "safe" with fewer plants. Two large but happy plants with fat buds will ultimately be better than a tent full of small, light-starved cannabis that will only yield mini buds. In addition to that, you'll also save on seeds.Significant temperature differences between day and night temperatures also impact plant development, resulting in taller plants with weaker stems and branches. Moreover, fluctuations in temperature and humidity could lead to a higher volume of water in plants. While this might lead to taller plants with larger leaves, flowers end up fluffy and loose. If using sea of green then you could if practical fit 100 plants in there in 1ltr pots but it should still yield the same as 4 plants seeing its the light that governs your yield to a great extent but you would have no vegging time In a SOG, plants only get 1–2 weeks of vegetative growth before they are forced to switch to flowering. No pruning or training is needed. As the plants don’t have time to branch out, the result is many short plants with short main colas. Every detail has been enhanced to guarantee healthy root development and maximise aeration. Additional oxygen in the growing medium leads to healthy bacteria and better nutrient release. At the same time the shape of the wall eliminates root circling and encourages the development of a mass of healthy fibrous roots. The additional roots mean better take up of nutrients and water leading to faster growth and healthier plants. Outcomes: Challenging to perform, consistent results, options for beginners and more advanced growers

I think the easiest way to work out the best pot size and plant numbers is to first look at what bulb you are using, and I'm using hps bulbs as my base and a 3ft x 3ft or 4ft x 4ft space, and whether plant numbers are a concern for you or just not practical EG..600grms = 21oz so if using 9 plants 600/9 = 66grms/plant which is just over 2oz. A 6.5ltr pot whether in compost or coco will produce that size of plant consistently if like I said earlier its grown in a good environment. I cant see the point of using big pots if only needing a couple of ounces per plant. By the time a large pot has rooted out the plant will probably be too big and you will have had to top or supercrop to keep the height down plus its just wasted time The dosing pot consists of a stainless steel vessel with inlet (return) and outlet (flow) valves, a drain valve and a filling valve. Use rectangular planting pots to fully take advantage of your available growing area. With round planting pots, you’ll be wasting valuable space.

So there's a few things that you need to look at before deciding, and then decide on what's practical for you A ScrOG keeps only the main colas under the light so the plant’s energy goes toward bud production. Top your plants early to get more branches, then proceed to train them in multiple directions through the screen. This way, you can get the maximum yield from your available growing space.