As for costs, without electricity, I've spent about â?¬900 total (calculated by my wife :wtf:, this includes seeds, grow room equipment and necessary tools also, pretty much everything I use or have needed for growing or making my setup) and going on my third grow right now.

Do you grow your own? Yes

What type of lights do you use? HPS
What strength lights? 400w, 55000 lumens
How many lights? 1
Do you grow SOG or not? LST and Scrog
What is your electric bill a month? 26 euros a month
What is your water bill a month? no clue, included in the rent
How many plants? First 1, then 2, now 6 ATM
What strains are you growing? GHS Trainwreck and an unknown dominant Sativa
What is your dry weight produced? About 2oz. per plant
What would you do different? Get an MH bulb for veg. Use coco instead of soil
What type of scent control do you use? carbon filter