I have clone problems!!

Hi i have 5 clones growing in rockwool that are currently 11 days old.
Im unsure of the plant strain as it was cut from a friends plant and in my opinion he cut them too short only about 1 node down. I used clonex for my rooting hormone only and no other stimulants. My clones are kept under twin cool white 4000k fluros 24/0, they are watered(misting the leaves, spraying the dome and making sure my cubes are at least damp) 2 times per day using filtered tap water. visual inspection of cubes on the exterior has no root growth yet, but upon carefully prying open a cube for inspection, roots are starting to form anywhere between 3 - 6ml.

Now my problem is that a lot of the leaves are turning yellow which im hoping is just the clone using it's stored nutrients for root growth, but the yellow leaves are also producing black blotches over them and also some of the green leaves, which is my main concern.

The yellow leaves are starting to feel to have a bit more of a crisp feel to them rather than a smoother texture of the healthier leaves, also some of the healthier green leaves are starting to curl and die on the tips.

So im worried if this maybe a fungus thing, or phosphurus thing maybe(sorry for my ignorance if i dont know what im talking about there) but im really worried as i really want to keep these puppys alive!

I have enclosed pictures for diagnosis if possible.

Thanks for your time in reading my post.
bez

WOW.. thanks for the replys and advice guys!!!...BUT be rest assured i was given qualtiy advice on another forum by many enthusiests who were able to promptly diagnosed my problems within 24hrs, seems to show qualtiy and professionalism of this boards mods and members, and sorry to members who did not have the the expertise in my plant problems i brought to this board as this is not directed to you. but seriously a simple reply wether helpful or not would have been great. BUT i guess i know which site the real cannabis growers and enthusiets rely and post on. So good luck in the future my fellow growers but hopefully less people fall into the same amount of disillusion i was left under after trying to use this site for advice!.

bu8t once again guys...THANKS for all the help you couldn't even be bothered providing me!
peace out.

Sorry Bezzzo, didn't get here , but a few minutes ago. For what it's worth, this looks like the clones were taken from a plant that had been infested with mites or something simular, and then the illness (not the mites) passed onto the clones. It's a something I saw once before on some guys grow. Can't fully explain the biological to you, can only tell you that, that eventually all of your 3rd and 4th leaves will probaly die. With that said, using good ph balanced water ( buy it from the store if needed) and be patient please!!! It could help cutting off the dying leaves as they come around. If all goes well, in a about a month or so it should recover. You'll probaly find the leaves you have to cut, will double up in thier return. Using a very diluted Ivory dish soap mix should kill and keep any mites at bay.