Greeting Fellows Farmers, I have 9 clones on the go. They were very slow to grow and took a long time to grow roots. I finally realised that it was too cool where I had them and I bought a heating mat and then they were fine. I transplanted from Rockwool to soil about 2 weeks ago. I think they spent that first 2 weeks putting a buzz on growing some more roots and now are devoting their energy into leaves. Should I be looking for a certain number of sets of leaves before I top them? They are about 4" tall at the moment and have 3 or 4 sets of leaves that are very close togther (is that what they call internodal distance?) I don't want to overly stress them but I do want to encourage them to be shorter and bushier than their moms. Any comments greatly appreciated. Cheers, Rufus