One of the biggest mistakes that new growers make is feeding their plants too many nutrients. Some think that the more nutrients they feed their plants, the bigger their plants will get. This is completely false...
Grateful Grower, a grower on YouTube, has an indoor grow room full of marijuana plants that are on day 23 of flower. He stresses that climate control is everything. The environment that you have your cannabis plants growing in should be ideal conditions for growing the plant. For example, he mentioned that he never has a temperature swing greater than 15° Fahrenheit - even when his lights go out and the temperature drops. Keep your temperature and humidity in the ranges that cannabis plants thrive in to help ensure your plants grow as big as they can.
In the video below, Grateful Grower also talks about nitrogen toxicity. When your cannabis plant has dark green leaves that are shiny, you could have nitrogen toxicity. This will significantly show down the growth of your plant. If you are in the flower stage and you suddenly get nitrogen toxicity, expect a lower yield. Since your plant has, "nutrient lockout", bud development suffer significantly. Another sign of nitrogen toxicity is when the tips of your plant's leaves point down. This is also called, "clawing", since the plant's leaves look like claws. If you experience nitrogen toxicity, flush your plant immediately.
He also shows off some clones and puts them under T5 grow lights. You can watch his video below.
Check out his video here:
Products shown/mentioned in this video:
Lumatek ballast- http://amzn.to/2jJ1LDt
T5 grow lights- http://amzn.to/2jfMESL
Green Cleaner- http://amzn.to/2kEtVw1
Helios 7- http://amzn.to/2jIVx6w
Dominator XXXL 6" grow light reflector- http://amzn.to/2jIRoiR
Hortilux 1000w HPS blub- http://amzn.to/2kcbcfA
Vortex 8" inline fan- http://amzn.to/2jIPMpd
Carbon filter 8"- http://amzn.to/2jyYcgN
Temperature and humidity monitor- http://amzn.to/2gcqiyY
Oscillating fan- http://amzn.to/2eIaG4X
Advanced nutrients- http://amzn.to/2jof3EE
Tomato cages- http://amzn.to/2l5S1QT
Plastic grow pots- http://amzn.to/2jLTz1o
SCROG net- http://amzn.to/2iVzzZF
Click here for other equipment that I recommend