I'm making a grow closet that's 7ft. Tall, 2.5ft long, and 1.5 ft wide. I plan on using 2 5 gal. DWC with a 150 watt HPS light. I'm not sure what to do about ventalation or what nutrients to use. I'll post a pic of a sketch I came up with. Any input??
ventalation is definantly not something to scimp on and neither is nutrients.
For That small of a space you could buy a small inline fan etc. or if you cant find one of those you can even go to home depot and buy a 120 cfm exaust fan for like 15 bucks.(but if you have the money i would def. get a small inline fan.) which ever rout you go just make sure that the exaust fan can pull all air out of room in 5 minutes.
You also need to have a way to bring in fresh air, whether you want to set up somthing to suck fresh air in, or simply open the door for a couple hours everyday its you choice.
And get an ocsilating fan to set in your room(for good air movement arould your plants).
As far a nutes go i always recomend botanicare products to new growers, for the fact that they are simple to use and work great...The three botanicare products i would make 1st on my list are:
Pro blend gro(veg. stage)
pro blend bloom(flower stage)
liquid karma(micronutrient)
Also whenever starting ferts, start at 1/2 recomended dose per gallon and after a couple of feedings go from there.
i hope this helps, and tell me some more about what your plans are and i will help you as much as possible. i.e. what do you plan to cover your walls with, how long plan to veg. etc.
good luck