Im doing great babe.
Glad that my bubba kush clones are finally starting to take off on rooting....Damn things seem to have a mind of their own and a will to match it....
I surely hope that you are happy I stopped by, your one of the 5 people that I come here to check up on, the only person who gets anything other than a lurk and an email later. LOL
I thought that you plants may have a calcium deff because of the leaf curling downwards in that upside down U shape...(frowning to the floor so to say)
Also rust looking spots develop starting from the bottom up and progressively eat the plants largest leaves away....
I dont really know of a home remedy for it myself...Actually Ive not heard of one period. LOL
Best I can suggest is to get a nutrient that is high in calcium that will be soluable for your aero system.
Cal-Mag or Cal-mag plus would be the best options IMO....
and I said that you would really need to worry if you were using coco strictly because coco is so infamous for being calcium/magnesium deficent.
Cal-mag is nearly a must for it unless you have hard water....