The leaf damage looks like signs of root rot, would check into this 1st. If everything looks clean and white, check into PH, if that seems ok, I would clean out your system and go with a fresh PHed water and give it a few days before feeding them.they were just transplanted in to hydroton last friday not the one that just passed i tryed to be gentle and they grew right away with no signs of stress took about three days from the transplant to the length in that pic so i dont think i damaged them too bad how ever there is a couple above the hydroton that was just way to high i couldnt cover but looks like they shriveled up and died off now
first time i tryed to turn my fans on in my room my freshly cut clones i had in my bubble cloner they fell over and died by morning, and i have 6 day old clones with nice root bumps sharing the room with these 2 older clones that why i havent kicked on the fans yet, the fans would kill the humidity and my new clones wouldnt make it,once they root i was gonna give it a shot....my new clones look like shit too by the way lol they are in a race for time to root before they eat all the greenery i dont think i misted enuff