What is this?? (pics included!)

Ok take a look at these pics...

The plants are 3.5 weeks old and they just stuck roots down into the res of this drip system and now they are turning brown from the bottom up. They went full strength dyna grow nutes a few days ago... ppms and ph ok.

what the hell is going on?? I am doing everything perfect. I have read all the defeciency and problem FAQs but I have seen nothing like this.

Please help me!

All temps are controlled, 78 in the day, 68 in the night.. pinch of epsom salt added to RO water.. nothing is different except that planys roots are finally hitting the water. im running 18/6 light cycles. All three plants exibiting same signs but the ones with the roots deepest in the res are showing the most problems.

HELP PLEASE!!

Is you're plant Indoors or Outdoors.
Also If Its Indoors what kind of light are you useing. And what is the wattage



Could be some kind of spider might

its not spider mites that shits burnt....need more detail please!:thumbsup:

Here are the standard overgrow questions (w/ans) Let me know if you need more..

Are you growing designer genetics or bagseed?

Paradise Seed Co. - Durga Mata (a.k.a. "Mother Goddess")

Are you plants from seed or clone?

Seed

How old are your plants total?

3.5 weeks

Are your plants in flower?

nope

How big are the plants (in height and # of nodes)?

see pics (< 1 foot)

What type of medium are you using and what is its makeup?

Hydroton with a 1.5" rockwool cube in the center

What size planter are they in?

10 gal res.. 6 spot with 3" netcups

Chemical or organic fertilizer?

dynagrow

How frequently do you water and how much do you use?

5 x 30 min drip cycles a day

How frequently do you feed them and how much do you use?

same as above

Have you seen any bugs in your garden?

absolutely not

What size light are you using?

2700k cfl @ 2000 lumens,
6500k cfl @ 15000 lumens

How big is the room they are in?

2x4

Do you have ventilation?

Air conditioner (window unit) cooling directly.. 78 during light cycle.. 68 during night cycle.

Hey Aaron this looks like a nute burn, just water now.

but its hydroponics??

somebody please help me.. its getting worse.. almost a third of the plant looks like the first pics now!!

PLEASE HELP!!!!

Ok, I picked up some calmag plus and a full round of flora series nutes.. I added the calmag to the res and will see if it makes a difference.. if no diff i will switch to flora all the way

Is it possible to get an Fe defficiency from a non-grounded pump?

Updated pics.. please help!!

Can you get a good picture of the roots? Are they damaged, diseased, or attacked by any pests?

i can get a pic but I promise they look healthy and good. No bugs or anything.. just a beautiful white long root bunch on each one of them.