cloning normal? or not

ok, so i took clones from the plants then flowered the mothers to see which were males.. now i have all the female clones and this is the process they went through... after i saw roots coming out of the bottom of the rockwool cubes i moved them from off the heatmat, floro, and humidome setup to a t5 ebb and flow setup.. then i gave them floroseries nutes for clones for about a week. all of the roots look like they grew and they all started coming out of the sides of the rockwool cubes but some of the plants have all curled up yellow leaves with just a little little bit of what looks like it could be new growth at the top.. all the small leaves on teh clones have shriveled up but the roots look like there still growing.. so anyway,. after about a week of tghe t5 ebb adn flow i put them under the 400 watt hps light in an ebb and flow with week 1 floro series nutes.. the roots seem to be growing but the plants are still lik estunted a little bit.. i didnt keep them under the humidome that much while they were originally rooting so i dont think thats the problym b/c ive had tehat problem before.. but i think its that the air is too dry for them to do much better so is there some type of foilar spray i can spray clones with from now on if so how long can i spray them for? and what do i do with the plants that the leaves are yellow are those dead or should i just leave them?