Girl Scout Cookies - GoG - First Grow

Day 22 - Not sure if I'm seeing the leaf tips curl down too much or not. Not doing anything about it yet, other than continuing to observe. Still planning on doing a pour through test the next watering, but I'd like to let the pot dry out well to encourage good root growth after transplant. I did not saturate the pot after transplant, but it still feels heavy so no telling how long it will take to dry out. Day 23 - Temperatures in the room went up quite a bit today with a spike up to 85F. Back under control, and cruising along at 71.4F and RH 52.8% again. No evidence of stress on the plant due to the sudden rise in temperature. Moisture noticeably less, and should be ready for watering within the next 2-3 days. Day 24 - Removed growth tips from nodes 1 and 2. I will be mainlining at the 3rd node after she hits 6 nodes. I chose to mainline this plant because I have very limited grow space for it, and the ARAY 2 lights from MIGRO have a recommended hanging height of only 6 inches. With such a short hanging height I'm concerned about PPFD drop off over even a few inches. I really want to get the canopy as even as possible to ensure all buds get maximum light. I've ordered my Quantum Sensor from Apogee Instruments in order to test the PPFD drop off into the canopy, and I should receive it soon. Day 25 - Nitrogen toxicity starting to become evident. The bottom leaves are becoming a very deep green, while you can see the interveinal space on the upper leaves becoming darker. I tested the pH of the soil, and it's a little lower than I'd like it to be (pH 5.7), but not in a bad spot. I'll perform a pour through test today, and based off of the results flush the soil. After flushing the soil significantly I'll give a medium solution of balanced nutrients to get her back on track. I only see stress in the petioles of the lowest leaves right now so I'd like to correct the issue sooner than later. I was expecting it mixing in so much well cooked FFOF soil into the mix. I've also turned up the lights, and raised them a little, in order to generate a bit more heat. Would like to get my temps up a few degrees. A few moments later... Results of pour through after watering to capacity, and collecting 100mL after waiting one hour, was a pH of 6.0 and EC 2.6. Not an outrageous number for that test, but a lot of that EC must come from Nitrogen in the FFOF. I flushed with 2 gallons of clean water, and ended with a litre of 90ppm N balanced nutrient solution. Will not need to water again for about a week. Day 27 - Showing signs of overwatering (curling), which isn't really a surprise. I'm hands-off at this point. I just need to wait for the media to dry out. After checking later in the evening I saw considerable improvement in the condition, and the leaves had started to lay flat again. Day 28 - Removed growing tips from nodes four and five. Waiting to start toping for mainlining until there's enough growth above node three to take a good clone.