I wanna know exactly how to use t5 lights for cloning. I have trays with domes and 1 4ft. 4bulb t5 light. The first time I tried cloning I had like a 25% success rate. Im cloning again, but dont want to run into the same problems as before and this time have a higher success rate. Im cloning with rooting cubes the small square brown spongy lookin things. I know you gotta keep on eye on them every day to see how thier doing. I mist the domes 2x a day and water the bottom of the trays with distilled water. I have only one vent open and sometimes blow air inside the dome just to get some good co2 for the babies. Its been like 10days now and no roots yet. I never let the cubes get rock hard always making sure thier moist and not drowned with water... I learned that the hard way. The lights right now are about 7in from the tops of the domes. had to move them up cuz it was getting to humid inside the domes and it did kill some of the clones... learned that the hard way 2 .. My Q's are.. How far away does the light have to be from the tops of the domes? Should I have the domes sealed or should I open the vents on top of the domes? Do you give the clones 24hrs. of light? When do I hit them with nutes? as soon as the roots start showing? Thanx u for reading and thanx for any helpful tips in advance.