WTF Happened to my Clones :(

I cut 15 clones and all but about 4 did this after day 4. I used half the amount of clonex requested. They were in 2 cloners and both showed signs of this. The clones were off 3 seperate plants not the same strain. I have cloned a fair amount in the past with a decent sucsess rate but I have never seen this horrid problem. Anyone know what this is?

Im wondering if it is somehow do to something not being clean but I did clean up well though I think I could use some bleach or other cleaner. Also since I really cant find a good cause for it I thought...I did have a bad cold when I cut them....could they have got a viruis.....lol I dont know just a thought I came up with probaly after taking my meds

Plants do get viruses, but i dont believe they can catch yours! Looks almost like nute burn. I would scrap those girls, and get some more. NEVER use bleach or any chemical agent to clean your gear. I have always used 90% iso, or warm water. Depending on application. Good luck!

Human viruses and plant viruses do not equate. Looks like some kind of nute burn. Starts inside and works out looking at the pics.