Spots on leafs, and lime green tops

What you're seeing is, I believe, a phosphorus deficiency and your nutes aren't giving the plant much of this... add to that problem, I don't think you're giving her enough water if you're only giving her .05 gallons a day... so what's happening is that the nutes and salts aren't being flushed out of the soil and are building up. I would do two things: I would flush her out with 3x the pot volume of pH'd water (your pH is terrific - no worries there!) so for you, that would mean 12 gallons of pH'd water through the pot. Into the LAST gallon, put 1/2 strength nutes to include a PK boost... General Hydroponic's KoolBloom liquid is what I use, it's NPK is 0-10-10. (Be careful with any PK boost as too much of a good thing can turn out to be bad!) Then, when she's dry, give her another plain watering and then you can resume your nutes at the levels they are now... but keep the PK boost going. If you use the GH KoolBloom, they have a dry formula of it that is only used during the last two weeks (if memory serves) of the grow - the liquid is used from where you are now in your grow up to those last couple of weeks... And whenever you water, make sure you're getting about 10-20% runoff... this will help clear out any excess nutes and any salts that might be building up. Good luck!

Magnesium. Calmag will fix it, and you'll be pressed to believe it was Calcium. I'd suggest Magnesium Sulphate, but you'd rightly accuse me of hypocracy over the sulphur do doubt 😅. There does seem to be some evidence behind the LEDs causing this in other grows. Otherwise, that's a beautiful plant!

My thoughts are the light may be to strong and causing the plant to use up more calcium. Damage leaves won't recover. Either dim your light a little or lift it a fraction and see how it goes. Your looking for un affected leaves not to show the same signs as the other leaves.

High bro, I can see 2 problems here. The first problem are burning tips because of nutrient burn. The EC from your nutrient solution can stay at EC 1.6 from now till flushing 2 weeks before harvest. The second problem is browning between the veins. This is caused by a Calcium deficiency. You need to add a Cal-Mag supplement to your nutrient solution. To manage the pH from your soil it is better to water until you've got 10% of the water that you give on runoff. Runoff means that the water runs out of the bottom of the pot. You do this to flush away build up salts that can cause problems with the pH and EC value. And between waterings you let the top layer of the soil dry out completely. When the top 2-3 cm is dry you can water again. Enjou your grow!

It seems to be mostly concentrated at the older top leafs, which leads me to believe its probably light burn, but im looking forward to hearing from some of you clever heads