I agree with you Al, the propagation domes that are sold now keep the humidity levels way too high with all the vents shut - and they are generally flimsy crap too unless you spend big dollars.
I have had repeated failures with my clones because of the rockwool getting too wet.
I do everything properly but once I put the rockwool in the crib - the 40mm cubes get so wet in 24hrs that they exude around half a cup of water and the clones are wilting and fucted.
Most other ppeeps have told me to put a thick layer of perlite under the cubes, and below that in the tray base - some water.
But after learning the hard way - I just don't see how this works for them as the perlite sucks too much water up into the cubes.
I'm trying RW again with no perlite/water beneath them and just spraying them twice a day.
Jimbo
