Quote Originally Posted by OMB
Good question budbro, I am wondering that too.
I only use water that is in jugs in my cabinet, including my misting bottle. That way the temp is always the the same as the plants. I lost a cutting to the same grayish, blackish
issue early on. I suspected it was too moist and started fungus and rot instead of rooting.
Beats me, but I don't let 'em get too wet anymore...... and Thanks Weezard, I was having heat issues about that time too. That explains it.

Not the moisture either my friend.
Think about it.
Ya don't get any moister than sitting in the water up to your neck, yah?
As long as that water has air dissolved in it they will not drown.

It's the reason I quit using rockwool.
Those cubes "sog out" and go stagnant unless you give them fresh, well aerated, water at least once a day.
And if you do get them to root, the Rockwool can go stagnant later on and cause stem rot in an adult plant.
Hate the stuff.

Not too crazy about Hydrotron either, for different reasons.
But that's a whole 'nother rant.

Aloha,
Weeze