Quote Originally Posted by CovertCarpenter
... how many tubs can you fit comfortably in your space (and move, while full of water/plants/etc)? Assuming 18ga. Tubs, I would say that you could get five or six plants in each tub (maybe nine on the short side..?), and four plants would have lotsa space. But don't skimp on the air...

400w MH will prolly light a 3'x3' space, but two would be needed for a 7'x3, or perhaps get one of those 1000w dual arc bulbs, and run the 600HPS and 400MH outta one bulb, off'n a single ballast... but yeah, if you used some CFLs on the side to both flesh out the spectrum, and light the corners. If you're going 400 to start, consider getting a 400 or 600w switchable digital ballast that can light both MH and HPS.

Two 600w would be nice overkill, and give ya about 9,000lumens/sq.ft.

Just me :twocents:

I could reasonably fit 4 tubs in the room, with the room having a longer length than width i was wondering if it would be better to have 2 smaller hid's instead of one large one to distribute light more evenly or would the larger one do the job just as well.

Also trying to not overkill to keep cooling requirements as simple as possible.

Thanks for any input
crossfaceturk Reviewed by crossfaceturk on . 1st hydro closet grow questions and advice Considering NL hydro grow (Rubbermaid) probably 18 gallon tubs larger if needed, thinking maybe 3 tubs 1) How many plants would be reasonable to try to grow in a 7x3 ft closet with 8 ft ceiling ? 2) One 400w MH-veg/HPS-flower with cfl side lighting or 2 250w MH/HPS ? 3) Looking at Sensigro and bloom and 3 part flora, what's your preference ? Will start seedlings, future mother(s) and clones in seperate floro area. Rating: 5