Tomato - Leaf Health Crisis

[Danen]

Hello everyone!!
 
This is my first time posting. I've grown 4 varieties of tomato plants from seed. I'm using a High Pressure Aeroponic system. Everything had been going well until recently. Below is a quick rundown of the grow room specs along with the issues I'm seeing. At this point I'm a bit stumped. I'm not sure what is off.
 
Any help would be greatly appreciated!

• Grown from seed
• 4 weeks old
• Grown using High Pressure Aeroponics (roots sprayed with very fine nutrient mist)
• Reservoir
• ppm: 800
• pH: 6.0
• Temp: 70F
• Environment 
• Day Temp: 75-78F
• Night Temp: 68-70F
• Humidity: 60%
• Lights on: 16hr/day
• Lights: 4ft, 2 bulb T5 VHO

Pic 1. Minor leaf curl with "leathery" texture 

 
 
Pic 2. Significant leaf curl/twisting?

 
 
Pic 3. Leaf twisting

 
Pic 4. This variety looks very limp. Some branches have turned upside down.

 
Pic 5. Branches upside down. Limp.

 
Pic 6. Leaf curling up

 
Pic 7. White/tan spot. This might be sunburn from getting to close to the lamp?

 
Pic 8. Only 1 leaf on 1 plant like this. The leaf is black, dry, and almost dead

 
Pic 9. Closer look at black leaf

 
Pic 10. More leaf curl

 
Pic 11. White patches

 
Pic 12. Yellow splotches 

 
Pic 13. White Spot

 

[Danen]

I did some reading and could this be due to overwatering by chance?

 

[suchen]

That is what my tomatoes afflicted with spider mites look like, though it may not be the case with yours.

 

[Danen]

Thanks Suchen. Unfortunately I think you're right....mites?

 

[John1234]

Root pics?
 
Mites leave a distinct speckling damage on the leaves. Google will give you a few images for comparison.

 

[Danen]

I'll take the root pics tonight and post them. Could it be white fly larva by chance?

Here are a few pics of the roots. An additive I used recently turn the nutrient solution brownish. I think that's where the brown hue is coming from. Sorry..I couldn't figure out how to flip the pics.
 

 

 

[suchen]

You would likely also find webbing left by spider mites. My leaves do indeed have the "stippling" or white dots all over like in the photo below. Then the yellow splotches began appearing, along with extensive webbing on the underside of leaves. Then some leaves would curl up almost cocoon-like where I am assuming the egg masses were laid.
 

 

[Spicytigger]

That's what my green beans start looking like.
 
Angie

 

[Danen]

Thanks everyone for the help! The plants are still growing quickly. However, I'm still having some issues with the leaves. Could this be a Calcium - Magnesium deficiency or nutrient burn? The below are of mostly older leaves.