How about the quantity of nutes i'll need in a single-plant DWC ?
A lot of the hydro threads i read the past couple of days have had plants drinking up to 8L a day!
If you are feeding 5ml/L of nutes then thats 40ml per day = 1.2L per month.
So you can easily use a couple of litres of veg nutes in a single grow!?
That certainly increases the cost of a grow, especially with the price of the advanced nutes stuff i was looking at!
steely