I use a DWC cloner. It's a 3gal bucket with 6 holes on the lid and a air stone. I use rootone, superthrive and nutes. I just clip clones and insert them in the collars and spray the clippings with water whenever I have a chance. Usually 3-4 times a day. No humidity dome and no heat pad. Roughly 6-8 days I see roots. So far I have had a 100% success rate.