I assume you read my post on cloning 101. http://boards.cannabis.com/showthread.php?t=23400

You and several other people kept assuming me to so yesterday I did. I did lock the thread in hopes Ron will make it a sticky so every can find it easer.

How wet is the underside of the lid you are using?
How much air gap is there between the stems hanging down and the water line? What is the Ph of the water?
What cloning gel or powder are you using?
What type of water are you using?
What type of light are you using?
What is the temperature at the top of the clones?
What is the Humidity?
Are you using Anti-wilt (you should, everyone should)?
How many air stones are you using?

As for bubbler clones they require lots of bubbles and I mean lots of bubbles. You should not be able to see the bottom of the tub you are using because of all the bubbles.

Don't worry once you get it down it goes quick and easy. Thanks for starting a new thread I hate highjacking someone elseā??s thread.