My greens are being grown hydroponically under a 150 watt multi spectrum LED grow light in an ebb and flow system.
For nutrients I am using an off the shelf basic dry nutrient from Wal-Mart, some calcium nitrate and Epsom salt.
The EC is about 1.3 with the pH at 6.5 with the photoperiod being 14 hours.
The video is about two and a half days growth and illustrates the rate of growth using hydroponics.
You tend to think of plants as being static, but when seen in time lapse it is evident that they are rarely still.