busybee321
New Member
I have a few questions on the flood and drain system. I have 2 3x3 trays with my seeds going in rockwool cubes in a dome right now. Most have sprouted and are 1 inch tall. At what point do I introduce them into lighting. I will be using 2 platinum led 450s. I also want to know when to start fertilizing and at what strength. I don't want to burn my little seedlings with fertilizer. I also want to know how close to put my leds to my plants. I know with hid lights 600 watts I would probably do 18 inches, but I am going to use leds. The 450 is equivalent to a 600 w hid light. I was also wondering how frequently to flood. I was thinking 15 min every 2 hours. I will be using pots with hydroton in them and my rockwool cubes inside. Thanks in advance!