benzolorenzo

Hay thanx I've decided to go with 40 and 8 600 I'm havin trouble keeping my humidity above 35 and also have fxxxxx spider mite I have bought a hotbox today but can only leave it on for 8 hours as they are still in veg any suggegions will be of great help

You might be able to get 50 with the 6/600's (Id still try and and add a few more just in case though).Id just keep them small maybe only veg for like a week or 2 then switch over.Or go 12/12 from seed.Id go sog but thats probably already what you plan on.
You might be able to get better yields if you only grow 20 or 25 and veg them longer.

I cant help you with the ventilation lol,I always hated that part but im sure someone on here can.

Hay I am growing useing 6 x600 hps lights can any 1 tel me how big of an intake fan I will need?