First I would like to say "hello" to all as I'm new to this forum...
Right down to business,
I have a growroom and I'm planning on using 1.5 x 1.5m (2.25m2) to do an experimental 12/12 grow... I gained my inspiration from reading Del's 12/12 thread.
Soil (Biobizz allmix)
15 cm (4.5l) pots...