i make clones with easy plugs... after they rooted i put them into the easyblock and give them 10-14 days to root in perfectly.
i prepare the mapito with watering from top... and I dig in the easyblocks to the level of the mapito.
after this I just water the whole room just from the bottom... by flooding the crates 1/3... 9 cm high or so.
they get 7-10 days 18 hour and they are ready to 12
but if I would plant more plant/m2 16-24.. u dont need more than 1-3 days of 18 light
im working with 8plant/m2... it needs a bit more time... but less mums and clones I have to keep