hi my lemon haze is nearly two months old and seems to be growing slow it was under a 85 watt CFL up until one week ago. Now I changed my lights over to a led 600 watt full sprectum light it's on 18 hours light 6 hours rest and the light is 20 inches from the plant. Since I changed to the led it's looking much better and is growing better can anyone tell me when or how I will know to give it nutrients ? and what the ph should be with nutrients ? and how many times do I give it nutrients a week please thanks check the pictures let me know what you think ?