First Grow with Mephisto Autos

Starting this log from week 2, which is when I started taking pictures. This is my first grow, so I've done everything pretty naively, but I'll record my missteps. For science. I have a 4x2 tent, and a 2 plant fallponic system from PA Hydroponics which has 13 gallon grow sites, and a 13 gallon reservoir outside of the tent. I bought a cheap LED on Amazon: Exlenvce 1200w. Everything else is standard ... fans, controllers, pumps (water & air), etc. I've had just the veg lights on for the first 2 weeks, and have turned on both now. I put about 10 gallons of RO water into the reservoir and applied the following nutrients: 30ml FloraGrow 30ml FloraMicro 30ml FloraBloom This resulted in about 250 ppm up from base measurement of 10ppm. After nutrients, I added another 15 gallons worth of hard tap water (400 ppm, 7.6ph). I added ph down until a ph of 6.2, and the resulting total ppm was 321. Midweek, the ppm had risen to the mid 400s, so I added 5 gallons of RO The seedlings took 2 days to sprout initial leaves, then about a week to find the bottom of the starter, which is when I put them (4) into the buckets (2 per bucket). I figured I might be able to train two sisters apart in those big buckets, but if not I can kill one (doubt it). I also expected some attrition, which happened with the Super Orange Haze. One spilt and dropped a root, but never managed to get out of the starter. Seeds started germination on Feb 22nd. Midweek, water had lowered visibly, so I added more hard tap, and about 25ml of Silica blast. Ph was back @ 6.2, and ppm around 450. Current state of affairs is: Water temp: 75.6 and 73.5 (two probes). Ph: 6.2 ppm: 456 UPDATE FOR 3/8 Reservoir change: - I drained the buckets, leaving just a little in the bottom that the pump couldn't get. Pulled out about 23 gallons. - I then added 25 gallons of RO water which started as ppm < 10, ph ~8. - The new water mixed with the remnants of the old water came out to ppm 32, ph ~6.2 (? will remeasure RO water next refill) temp: 68F. - I then did one half of the feeding regimen one nutrient at a time measuring the ppm change. My thinking was that I could always go up, but not easily back down in PPM, so start slow and maybe figure out how each nut impacts ppm. Here's exactly what I added and the changes: 1. FloraMicro: 45ml. ppm went from 32 -> 140 2. FloraGro: 60ml. ppm went from 140 -> 215 3. FloraBloom: 15ml. ppm went from 215 -> 240 4. CALiMAGic: 15ml. ppm went from 240 -> 285 5. Silica Blast: 10ml. ppm went from 285 -> 290 6. SuperThrive: 10ml. ppm remained 290 - I then added the same amounts of nutes in the same order with the final ppm coming to 560 and the ph @ 5.5. - I added ph up (~2.5ml) to get to a final ph of 6.