I just looked up my timer schedule. It was the closest I could come to what I wanted with the 14 event $20 timer. It is 30 on and 75 off. (This is for rooting in the aerocloner.) For rooting clones it doesn't really matter, as long as the roots don't completly dry out. If I could afford another cyclstat I would do something like 6 minutes on and 45 off. I know many people leave theirs on all the time and get great results. The theory behind an off time though is to have the roots search for moisture, and also to not get too saturated, which can cause mold/rot problems. Many people, myself included, think that roots grow bigger and faster if they have to search out moisture.

For delivering nutes, my veg area and my bloom area are on one timer, which is set at 40 seconds on and 7 minutes off. A popular number seems to be 1 minute on and 4 off. I know you can buy non adjustable cyclstats that use these numbers. I think they are around $85. I think you want to keep the roots in as much air as possible without drying out. You may have to experiment to find out what these times are for your set up.