Thanks for the tip Mistyg!

I thought my bed seemed a little big for SoG, I think I'll just have 20 plants in a square meter.

I might not have the money for a full hydro set up at the moment, so I'll probably just use good old organic soil and my watering can.
Buddahbear Reviewed by Buddahbear on . Unsure about 400 VS 600 HPS I plan on having a 16 plant sea of green in a 4X4 (one plant per square foot), using some kind of hydro (flood and drain) in some kind of medium. Now my question is, even though all the books say 400 watt HPS is OK for a 4X4, will it be enough for 16 plants? Would it be OK to suppliment it with some CFLS or do you think it's neccessary I get a 600w? Rating: 5