:rasta:Good Day:hippy:

I am no expert and am learning just like you, but I think a rule of thumb is that you should have 12 to 16 plants per 1000 watt bulb. this is what I do right now is I have a 4 X8 sheet of plywood with 6inch sides and I use 3 gallon Plastic Pots, about $ 2.75 each, plus HST Ha ha
Do not forget to turn your plants each day. I have found this a Must, it really helps even out the plants.

I do not know if others do this but I keep my plants evened out, as in height. As some plants grow faster than others in height, so I use small Styrofoam blocks to place under the smaller plant pots so everything is even, nice and level.

Hope this helps.

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Surrey Compassion Club