@5ecret 5quirrel Use that beautiful soil you have. Forget the rockwool, I've never had success with it either. If your strain is at all prone to disease it fails very often.
Tips for successful cloning and 90% success....
- Use your soil, after the boil you are in business. Tray inserts, such as 18 per tray in your situation, or plastic cups if you can't find them. I use tray inserts of 72 and lose maybe 2 clones per tray using just regular organic soil with worm castings, you got the worms in there. Use that soil.
- Clone mothers that were grown from seed. This is optional but will improve your odds by starting with a more disease prone genetic.
Simple as that. No need to worry about your temps as long as they are within reason, no need to heat up the room, aside from some pots or cups nothing needed for purchase. You got it now.
As I read through the thread and seen you were boiling your soil, I knew you were on the right track and was hoping by then end of it I could chime in before you had it all figured out yourself.
I have to say, I have a lot of respect for you with how you are getting things done in China. And your results speak for themselves, great buds in your post.
Respect.