Welcome friend!

Well your space sounds great to me, i'd love to have that option. i built my room in a basement and it's not super stealth.

Are you planning on doing both flower and veg in the same closet? Cuz probably the most logical setup would be to split the closet in half vertically.
veg on one side, flower on the other.

In that case you'd have roughly 3x4x7 to flower. That isn't a huge space so if you flower them small (maybe 10"-12" tall) you could probably fit 4-6. it's gonna be tight though. I personally would do 1 larger plant. 400w would be the most i would put in this size space, And even then you'll need good ventilation. But i use 2 400w's and i love them, no need for bigger bulbs in my setup.

If you plan on just using the whole closet to veg, then flower...you could fit a few more, or maybe 3 larger plants. If it's your first grow, i'd definitely start with fewer plants until you get the hang of it, regardless of room size. And a 400w might have trouble spanning 8 feet of space. Either get a light mover or a second light (250w-400w).

As far as a passive hydro system, i couldn't say enough good things about DWC. It's super cheap and easy to build, very easy to maintain, and very productive. I can put a few threads together for you if you want. And i would use Hydroton instead of rockwool, The small rockwool cubes are ok for clones but i've had trouble with the bigger cubes.

That light should be fine, HTG is a great shop.

I'm sure others will be around shortly to tell you more.
skeet
elskeetro Reviewed by elskeetro on . First time set up. Hello yall, after 20 years of throwing my money away i finally got enoeph nutz together to start growing myself. I have been doing research for the last month and this is what i decided to do. Any help or comments would be much appreciated! The only practical location is my closet. Its a pretty big 2 sliding door type about 3 feet deep and 8 feet long and 7 feet tall. I decided to go with a very simple Hydro passive resoviour system using rockwool. I don't quite understand how it works Rating: 5