Put them into whatever you can find. The cuttings can be put into Jiffy things, lot's of people use them. I root in promix or coco. As long as the cutting is cared for properly it will be happy. I use 7.0 ph water for the first week and then 6.5 the second week. After roots begin forming use 1/4 dose nutrients and increase strength gradually throughout vegging process. Works for me.