I plan on building a a 6'x4'x6'. Is plywood with flat white paint enough? Should I put anything else on the walls? Like aluminum foil or reflective board?
Going by what I've read on this thread, with my 600w light I have about 12sf to work with for plants. About how many plants does that equate to. Oh btw, witll be planting NL fems.
Equipment (as of right now):
PowerTrip 600+ kit:
6" or 8" air cooled reflector w/ flip glass
Dimmable fan cooled ballast
Dual-Arc 600w bulb
FFOF and FF light warrior for the seedlings
GH micro and bloom
five gal buckets
Any advice, comments, suggestions, or caveats will be greatly appreciated. I am about to leave for work, so I will not be able to respond to any posts until later this evening or tom morn, but I will check back. Thanks again and happy growing!!
For the first question flat (matte) white paint is enough to get reflectivity, however, if you go call your local hardware store to see if they have rolls of mylar or panda plastic (white) it would be better for you, less messy and easier to install. Plus, if you have to move you can take it down and reuse it. The mylar is easy to tear, so if you have these problems I would recommend the Panda Plastic
Here is a link to another forum debating the issue.
http://www.gardenscure.com/420/theories-speculation/101127-panda-plastic-v-mylar.html
You have enough light from my research to cover 4x4x6 area basically with proper venting and cooling going on. I would go to the lighting forums and look up specifics on lumens/sqft. I know the bubbleponics guys have tons and tons of info on this topic. With that area you have as much room per plant as you make use of, if you are using techniques, like screen of green or something like this, you may only need 1 plant to cover the area. You plant should be as wide as it's container and can grow as much as twice the height. If you have a 3 in. tall container it may grow 6 in. from the top of the soil.
I have a 4x4x6 grow tent, I was told at the time I purchased it that I could grow 9-12 plants in it. That leads me to plan how I will use the room in the area I have to work with. I would recommend using 3Gal buckets for a smaller area, you achieve more canopy if you aren't using training techniques.
Also, I don't want to forget to mention specifically
DO NOT use aluminum foil. It will cause spot lighting and has worse reflectivity than flat white matte paint. It will burn your plants and inefficient use of space.
Another tip I learned from a friend and found again in forums and books is, make sure the area above your tent has something reflecting or small cfls. The light will bend towards these dark areas and away from your plants. Don't know if you have already done this as I haven't seen your setup. It is definitely worth mentioning.