reservoir size

I've not grown for a couple of years because reasons, and I'm wanting to use an automated configuration with 6" rockwool blocks. I don't have a good handle on watering amounts. If I want to have a reservoir for a week, what size of reservoir tank should I calculate under 1000 watt HPS , I'm...

I desperately need a guide that gives cannabis nutrient needs in a QUANTIFIABLE manner such as grams per plant mass, grams per area, etc. Can someone please point me in the right direction? If I knew how much nutrients approximately, say per kilogram of cannabis uses per day, I could better...

Hey everyone im starting a new warehouse grow and need some opinions on the set up. set up is going to be 100 1000 watt gavedas lights and im thinking of running flood and drain trays with hydroton in 8-10 inch pots SOG style. Just was wondering if i should run a bunch of small trays and...