Hi!! New to growing, doing indoor hydroponics. My first grow I had 2 northlgts,4 blueberries, 3 am.hz. I have a 2x4x63" tent. How do you get the plants to change color? I have 3 gdp this time and 2 gold leaf? In week 7 of flow Thanks![IMG_20180806_054227209_HDR|666x500]
You can drop your nighttime temperatures about 10-15°F below your daytime temperatures to get colors to come out, but only if the genetics are those that will produce colors.