Grow #1: Gelato + Unknowns

Hello, and welcome to my first grow! I intend on this process being a learning experience - I like experimenting and learning from my mistakes. I have many years of cannabis and botany research under my belt, and I think I am ready to put what I've learned to use. I am starting very small scale to gauge my interest in the hobby, and to see if I have what it takes to grow frosty colas. If all goes well, I intend to scale-up later this year to include a much larger tent with many more plants. So far my experience has been great. I am using seeds from Amsterdam, thanks to Nirvana seeds. Their customer service is great, and I've heard superb things about the genetics they offer. Because I ordered my seeds from Nirvana around Christmas, they were gracious enough to send me a bonus gift pack of six unknown feminized seeds. Part of the fun of this first grow will be finding out what kind of strain I was sent - really looking forward to growing them out and seeing what kind of special treat I got! Follow along and help me I.D. these girls once more identifiers begin to show themselves. I will mainly grow indica-dominant hybrids. I plan on making bubble hash, edibles, and keeping a good majority of the flowers for smoking. For this grow, I will be attempting a mixed training technique. First, I will top the plant around week 3 to destroy apical growth. Then I will top the plant again after lateral growth for a total of eight cola sites. I then intend to use a scrog trellis to support the large buds from the manifolding technique. I will be going relatively light on nutrients to keep the flowers fresh and smooth tasting. Because I am a beginner, I am open to any tips and tricks more experienced growers have for me. So please feel free to critique my grow! January 5, 2021 (Germination, Day 1): Started germinating three Nirvana seeds (1x Gelato and 2x Unknown Feminized). Avg. ~65% rH and ~76℉. January 6, 2021 (Germination, Day 2): Kept paper towel moist. No changes to report. Avg. ~70% rH and ~79℉. January 7, 2021 (Germination, Day 3): All seeds popped. Unknown #1 needs another 12-18hrs of germination before planting (tap root still very small). Planted Gelato #1 and Unknown #2 in 40% Happy Frog soil, 40% coco coir, and 20% perlite in .65l "Jiffy" cups. Avg. ~67% rH and ~78℉. January 8, 2021 (Germination, Day 4): Planted Unknown #1 in 40% Happy Frog soil, 40% coco coir, and 20% perlite in .65l "Jiffy" cup. Soil of all three plants moistened on bottom of cup to promote downward root growth. No other changes. Avg. ~60% rH and ~75℉. Put all plants under humidity dome to promote quick sprouting. January 9, 2021 (Germination, Day 5): Unknown #2 has uncovered its own seed. Top-filled loosely packed soil to repair. Watered in AM on bottom of cup to promote downward root growth. Humidifier malfunctioned and tent temporarily spiked to 99% humidity. Remedied by adding ice to the humidifier to keep water temps cool. Experimenting with different fan combinations to dial in tent atmospherics. Current settings - Exhaust fan: Off, Intake fan: Running backwards at medium speed, Interior fan: High, Humidifier: Low -- these settings keep my tent at around ~70% rH and ~79℉ on average. Removed humidity dome. January 10, 2021 (Sprout, Day 6): All plants have sprouted. Gelato #1 ~1" with first fan leaves. Unknown #1 ~.5" with cotyledon only. Unknown #2 ~.75" with cotyledon only. Avg. ~67% rH and 80℉. January 11, 2021 (Seedling, Day 7): Gelato #1 full seedling ~1.5". Unknown #1 full seedling ~1". Unknown #2 full seedling ~1". Plants watered 08:15 w/ pH 6.6 corrected water. 6.55 pH runoff. No nutrients yet, beginning next watering. Avg. ~70% rH and 77℉. Anticipating some great growth next week!