Update 8/24/08 (2)
Wanted to give the girls a once over before the light goes out today. Plant B just doesn't look right to me. Some of the leaves are yellowing, looking deficient in something. Symptoms most closely resemble the drawings illustrating Zinc deficiency as shown in Jorge Cervantes book, Marijuana Horticulture The Indoor/Outdoor Medical Grower's Bible.
So, I bit the bullet and gave the PH testing ONE MORE TRY. And I think I've figured out how to use the blasted thing. If it's right though, my PH in both plants is 7.0, listed at neutral. So what should it be? I read somewhere that there are a couple of household items which can be used in place of the PH Up/PH Down stuff (which I can't afford right now). If anyone knows what they are, please let me know. For now, I haven't done anything about it except remove two lower leaves on Plant B that were looking hopeless.
I'm still wondering why Plant A is so covered in crystal while Plant B hardly has any at all. I know B is a little behind A in development but I'm not sure why since both cuttings were taken on the same day from the same mother.