Best results organically?

fit as many 5-12 liter plastic pots as you can into your tent with 5cm inbetween each pot. transplant directly into those, flip after a week. since you already germinated them go sog.

@GreenOrganicGermany said it all... go for bennies!!! (beneficial microbes). They are your regulators peacekeepers, healers and farmers in that underground community ;). Let me only add that for that light I would go with at least 25L pots and like only 5 - 6 plants in a 4x4 tent. Take your time and have a big harvest.

To get the best out of the soil, it needs to contain both those useful microorganisms and, of course, enough food for them. Common microorganisms would be, for example: Bacillus amyloliquefaciens, B. brevis, B. cirulans, B. coagulans, B. firmus, B. halodenitrificans, B. laterosporus, B. licheniformis, B. megaterium, B. mycoides, B. pasteuri, B. polymyxa, B. subtilis, and so on... Where do they come from?! Compost and worm humus are a great source. So, it's highly advisable to use compost or humus in the soil mix. These microorganisms need food. Sugar in the form of molasses is very suitable for this. Bacteria love molasses. So, it's advisable to regularly feed with molasses-containing fertilizers. Additionally, the soil should contain Trichoderma. Trichoderma is a large genus of the crust fungus relatives from the division of sac fungi. Trichoderma species are filamentous fungi that are widely distributed in soil, plants, decaying plant debris, or even wood. There we are again with compost =D And last but not least: Mycorrhiza Mycorrhiza is the community of soil fungi that live in symbiosis with plant roots. If you consider this when mixing your soil, you've already done a lot of good for your soil, and of course, your plant. This is all very simplified, but maybe these bullet points will help you =D Oh, and lastly, I personally would agree with Jalbit's statement. It could really get a bit tight for you =D

your plants are too close.. As they grow you will get a big mess. Consider to eliminate some of them or replant in a more large space...