heat alarm: 2 days outside temp is 40˚C, in tent 31°C / 65 rh (is in acceptable vpd-range -> no change) signs of heat stress (1 ww+bb/1 bg) and few mould on surface of soil running tent open with add. osc. fan very few nute burn every 2 days basic water; weekly basic water + nutes 2 more bgs heat stress ____________________________________________ light- and watering schedule: see photos now: 16 plants 3 x Auto Orange Bud > Dutch Passion (early80's) 3 x Haze Berry Automatic > Royal Queen Seeds (2018) 2 x Auto Euforia > Dutch Passion (late 90's) 2 x Auto Bubblegum > TH Seeds (late 80's) 2 x Original Auto BubbleGum > Fast Buds Company (late 80's) 1 x Strawberry Pie Auto > Fast Buds Company 1 x Gorilla Cookies Auto Seed Stockers (2015) 2 x Auto White Widow x Big Bud > Female Seeds setup + strategy: 18 seeds 3 x Auto Orange Bud > Dutch Passion (early80's) 3 x Haze Berry Automatic > Royal Queen Seeds (2018) 3 x Auto Euforia > Dutch Passion (late 90's) 2 x Auto Bubblegum > TH Seeds (late 80's) 2 x Original Auto BubbleGum > Fast Buds Company (late 80's) 2 x Strawberry Pie Auto > Fast Buds Company 1 x Gorilla Cookies Auto Seed Stockers (2015) 2 x Auto White Widow x Big Bud > Female Seeds setup: 18 x gronest 2 liter 60 cm x 120 cm x 180 cm (2 x 4) growtent 4 l humidifier 25 watt axial fan 15 watt clip fan ro-filter bath room with a 50 watts room fan (-> carbon filter not necessary) ...and a lot of odds and ends. grow strategy: max yield by stressing with: 1. tiny shoes (2 l fabric pots standing on 3 plastic rings (4 cm) for max oxygen) 2. tiny growspace (18plants on 0.72 sqm) 3. many strains (8 strains) 4. annoying neighbourhood (mixing old - i.e. bubblegum (late 80's) - with young- i.e. hazeberry (2018) - genetics) 5. no stress by light or food or water 6. unintentionally too much food plus: - no lst - no hst - just leaf tucking - positioning bigger strains (euphoria, orange bud, haze berry) or just bigger phenos on less intense light spots (end of tent + edges) - music-rotation: 24 hrs reggae (for sativas) - 24 hrs classicals (because it's scientifically proofed) - 24 hrs traditionals from the hindukush region (for the indicas) max efficiency (min electricity - max yield): - light: 23 h on - 1 h off - keeping the distance of 18" (45 cm) and dimming to the right par (lux) - value depending on growing stages (see sheet: beginning 185 par ( 10000 lux/100 watt )/end 340 par ( 18000 lux/175 watt )) => ends up in approx. 170 watts in average over max 15 weeks temperatur management: - using approx. max. half of what the lamp can do keeps temperature low: my tsl 2000 is pulling max. 360 watts of the wall - i need only 175 watts, results in less temperature than using a 175 watts lamp - adjusting the temperature by using a humidifier outside of tent: blown in humidity is soaking degrees and is transported out by fan, works much better than doing the same with pure air summer extreme: no humidifier: 36°C / 35 rh - with humidifier: 29°C / 65 rh works for 1-2 weeks of real hot summer days, no mould, no signs of stress in two summers germination: seeding in waterglass spraying "basic"-water: ro-water (22 ppm) + calmag to 180 ppm every 4 - 8 hours until sprouted man versus fungus gnat: 5 days before seeding i'm running the tent with "basic"-watered pots as if there were plants inside - led on, fans on, humidifier on. Fungus gnats coming with the soil might take the chance to come out now for breeding. i'm waiting with a 9 mm rifle. in the past i found 6 gnats in 2 of 8 x 50 l biobizz lightmix bags coming out of the soil. i could eliminate every single gnat successfully ;) rotating harvest: the little ones will be harvested completely when ready. at this point only the top branches of the big ones will be cut...and the new (basic-watered) pots of the new grow will move into the tent. 2-3 weeks later the secod half of the big ones will be cut and the second half of the new grow will move in... nutes: biobizz / soil: biobizz lightmix bloom,grow,topmax,activera,algamic + aminopower instead of bio heaven (too expensive) individual feeding schedule/once a week: veg: 200 - 600 ppm bloom: 600 - 900 ppm water: ro-water with: veg: 100-150 ppm calmag bloom: 150 ppm calmag