I feel for you.....if you have a chance read my thread about some of my wonderful soil experiences.

http://boards.cannabis.com/grow-loun...n-so-long.html

If this is happening in your peat pots what kind of water are you using? It sounds like a ph issue....do you calibrate your ph tester? What kind do you have?

I'm just guessing on all this stuff....i'll just babble and toss out ideas and hope one of them sticks unless you tell me to shut up or find out what the problem is.

Good luck

PS..If it starts at the beginning you need to break down what things DO NOT CHANGE from the time you start them until the time they kick off.