HELLO JEFF I WILL DO MY BEST HERE, THE PIC IS NOT TOO GOOD OF THE FRUIT ITSELF, BUT IF I HAVE NOT MISSED MY GUESS IT COULD BE "CATARINA" IM GROWING SOME THIS YEAR AM I RIGHT?? THANKS YOUR FRIEND JOE

Pic isn't clear for me to see what I'm looking for so here is a guess... Do your stems have lots of black dots on them that turn into long black lines,eventually turning the stem black? If so I have some kind of sucking insect that seems to spread a virus that starts out as a bunch of black dots on the stem,turn the whole stem black-not sun purple. Sometimes it ,most times it effects only the branches the bug got to. I've had all but a couple branches get messed up and eventually die. If it's what I had,it doesn't seem to effect the branches without the bug bites.But the bug bites are not just 1 or 2 per plant/branch. The bug bites are a bunch at a time,close together. If it is a fungus,try Sulfur. Whenever I use Copper it seems to do more harm than good. There are several fungusides out there with 10-14% sulfur. Just NEVER use it with an oil or during the day.Spray it EARLY morning or sunset. If you use it withing a month of using NEEM or similar oils you can kill your plants(been there,done that). Oil reacts with sulfur to make a plant poison/Toxin under different conditions. I think some bug leaves a toxin that causes what I'm talking about since when it starts out it mostly effects the branches that were bitten. I've seen a plant bie except for a couple branches that didn't get the bites marks. Here is a link that might be useful: oil and sulfur

Is it the 3 part gh. Did you mix the micro first? Did you use tap or ro water? I would not cut off any growth yet the plant is to small. I dont think the light time matters. I keep my leds 18" from the surface. To close with leds and you dont get the full spectrum. I would dump the nutes and just run the grow at the recomended dose of 5ml per gallon. No micro or bloom. Once the plant is thriving you can go to the full 3 part. Check your ph it should be 5.5 to 6. I run 5.8. Here is a pic of my reaper in soil under led since it sprouted april 1st. Just took the pic.

If they sprayed that close to you then unless your plants were covered you likely have herbicide damage on all of them. They should give you some warning in advance before spraying so you can cover them as it can drift for up to 1/2 mile. Recovery is questionable - so do and some don't at about a 50/50 ratio and even some that do recover remain stunted. Tomato plants are especially susceptible to it. About all you can do is remove as much of the damaged foliage as possible, hose off the remainder of the plants (that's an ASAP) and watch the new growth for symptoms. Personally I'd buy a couple of replacements to have on hand if needed. Indiscriminate use of herbicides by neighbors is a gardener's worst nightmare and the hazards are well documented. But too many folks ignore the usage guidelines until it is too late. Sorry. Dave