Well what a week lol. Noticed brown spots and yellowing of leaves on lower branches, progressively got worse and higher up the plant.
Repotted to a bigger 5 gallon fabric smart pot at the end of week prior to flushing plant. Added in some Dutch Treat soil.
Finally got my digital pH and TDS meter. As I suspected, high ppm and low pH in the run off.
Had to flush plant with 20L of 6.8 pH water over the weekend slowly.
Suspected nutrient over feeding (1840ppm) causing low soil pH (5.34pH) and nutrient lockout.
Got levels to 6.25pH and 814ppm. Carefully fluffed soil to help dry out faster. Reduced light to 80% to let plant recover over the next few days.
Will start with just water at 6.8pH and resume feeding after at 50% depending how things look and ppm runoff readings.
Overall the plant looks decent for all things considered and just got the SF-1000 grow light last week. Was just using 2 Amazon basic LEDs before from seed. Dozen or so node sites with new growth, FIM'D last week and now seeing 4 new nodes with new growth on top and FIM'd a few outer nodes on the branches that were ready.
Hopefully with better monitoring of feeding and pH levels will be ready to flip to flower in a week or two. I want the plant to develop to good size before flowering. Starting with poor lighting and this week of Nutrient lock out has stunted growth speed, still good size for age, just need to correct lock out and low soil pH