Sog bro 12/12 from seed or rooted clones would b better
10 plants
7.5 litre pots in canna cocco pro medium with there range in nutes
hydroton to lay in bottom of pots and if you are nt silly u could pull at least 6 oz imo
if ur experienced enough u could pull a nine
the reason id do a sog bro is a 250 does nt penetrate canopy very well so to use all the light effectivly 12/12 from seed or rooted clone would suit this setup perfectly imo!!