i had 6 plants to start with but 2 didnt sprout im mainly using the cfls to keep the plants from leanin in to the MH ill probably take them out when the plants r bigger
what do u mean by harden? this is my 1st grow using HID lights
Just most people start their seedlings off under low power CFL lights, as HID's can be quite powerful/hot for seedlings. Obviously when they move em to on to the HID light source it can be a bit of a shock for them as they are used to the less powerful/cooler CFL's so they need hardening off (introducing slowly) with the light source not too close. As you've started under a HID your seedlings should be used to the light and heat so they won't need hardening off