How strong is 'too strong'? If possible, I'd like to put cuttings in ebb and flow tray, but it only has one res and that res has nutes. I know you are supposed to be able to put cuttings under a dome with rockwool cubes and let them go, but it seems like they get too dry.
Well I think the general plan here is that you are supposed to be in control of EVERYTHING
Plants don't get just get dry, that just doesn't HAPPEN!!
you forget or neglect to water them and they die as a consequence to your lack of attentiveness
Don't want them dry, then water them...........what's the issue? work it dude!!
strength? start out (just a suggestion here) at maby 10% and work your way up slowly untill you feel that the plant is so robust that if you over nute the plant it will survive.
Don't know where that fine line is? then you'd better be carefull and not get aggressive. Like a DR., above all, do no harm. At least not yet. Little baby is just that, a little fragile baby