One of these is not like the others.

[Bill.de.Cat]

Problem: Light color, browning leaves

Medium/grow method: HF in autopots

Feed: and supplements used: Mega Crop 1 part ( up to 4.5 grams per gal) .5 epsom per gal.

water source: RO filter

Strain/age: 3BOG X samsquatch

light used:3 x MH TS1000 in 3 x 5 tent

Climate:75 to 80 f, 45% to 60% humidity, 18-6 light schedule.

Additional info: 6 autopots running off of same reservoir, had no visible problem till about 2 weeks ago. This one plant is in the GLB test and wondering if root system has upped nutrient intake and it might be getting over fed.

Left side of tent

Right side of tent

Center of tent with problem plant in front

Only appearing on the one plant and has gotten worse since last reservoir fill making me think it's possibly overfed. Any thoughts appreciated.

 

[Bob's Auto's]

That's a magnesium deficiency, but according to your post you have enough magnesium in your drink already...Mmmhmmmm...makes me think of the root system. Close off the tap of that autopot tray and let the soil dry out a bit. Topfeed with recharge or any other enzyme product that helps get rid of root rot and anything dying in there until the color comes back.
Also check underneath the pot and the tray for nasty smells... Clean and when you restart that tray, dial the fossette so the water pressure is lowered.
I had a similar issue with my autopots in the beginning.

 

[Bill.de.Cat]

That's a magnesium deficiency, but according to your post you have enough magnesium in your drink already...Mmmhmmmm...makes me think of the root system. Close off the tap of that autopot tray and let the soil dry out a bit. Topfeed with recharge or any other enzyme product that helps get rid of root rot and anything dying in there until the color comes back.
Also check underneath the pot and the tray for nasty smells... Clean and when you restart that tray, dial the fossette so the water pressure is lowered.
I had a similar issue with my autopots in the beginning.

Got it turned off and pot draining, most of feed sucked out with my handy turkey baster.....Only have Mykos WP in house...could check local hydro store for Recharge..

 

[Bob's Auto's]

Got it turned off and pot draining, most of feed sucked out with my handy turkey baster.....Only have Mykos WP in house...could check local hydro store for Recharge..

I use PureZym from Plagron. It's actually the same, but I couldn't get my hands on Recharge either.

 

[Bill.de.Cat]

Local shop doesn't carry recharge, but after describing the setup to owner and problem he suggested a good flush out of pot with boomerang. He got that in one of his and it worked for him....might just be bro science and he does photos as he also suggested maybe a pull out and root trim before I let him know they were autos.....just need to get her through another 20-30 days I hope.