Hey, so I recently read an article on seedlings which stated that you should leave your light on 24/7 until the initial leaves (not the cotyledons) have gotten about 2-3 cm long however I've also heard that people like to keep 18/6 the entire way through until they're ready to swap to flower, my question is: in YOUR opinion should I keep the lights on 24/7 for now or swap them to 18/6? Which do you think would be more beneficial for the plant and why? Also do these girls look healthy? Any help or advice is much appreciated! Thanks everyone!
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Current Grow: 1X Mimosa Evo - 1X BCN Critical XXL
Medium: Atami Coco substrate with 30% perlite mixed in 1 gallon fabric pots until 3 gallon transfer
Space: 3 foot X 3 foot X 6 foot lined in pandafilm
Lighting: Mars Hydro TSW2000 at 20 inches away using dimmer to control light output
Nutrients: Shogun A+B, Vitamax Calmag, Shogun pK 9/18, pH up & down
Average Room Temp: 22°C night - 25°C day --- 71.6°F night - 77°C day.
Average RH: 50% - 80% in seedling stage, 50% - 70% in vegative stage, 30% - 50% in Flower
Methods Used: TBD -
Welcome @Begginersprouter, IMHO, 24/7 lights are not a good idea. Plants like all beings need a rest period. Mine are 9 weeks now, have been on 18/6 since sprouting, and are very healthy. Your seedlings look great, not leggy, so you lights must be about right level. as you planted direct in a larger pot, be careful about watering.
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Your info will be at the bottom of all your postsGrow # 3 50/50 S/I Critical Mass photo fem
Seeds drop in water 1/8/2022
Medium: FF Coco Loco plus 30% Perlite in 7 gal cloth bags
Space: 30x48x62 DIY cabinet lined w/space blankets
Lighting: Bloomspect SS1000 Quantum board x 3 - 300 watts actual draw
Soil Supplements: Worm Castings, Crab Shell, Oyster Shell, Neem and Karanja Meal, Volcanic Basalt Dust (for minerals), Recharge root micros. Grow 3 is with reconstituted super soil to which I've added several additional minerals and supplements. A more complete list based on Cackamas Coots super soil recipe can be found in my Auto Toka thread
i don't grow plants anymore, I grow soil that my plants can thrive in!
My filtered tap water runs over 7.5 pH but the soil microbes
make pH correction unnecessary
Ventilation: Vipospar 4" Exhaust Fan w/RH controller, 12" Carbon Scrubber8" bottom intake fan, 6" clip on fan, 6" heater as neededCabinet on screen porch. N AZ @ 4000 ft.
My salute to all who have served
Semper Fidelis!-
Thank you so much for all of the help! I thought my seedlings looked healthy as well however I posted them on a Facebook group page and got told that they're healthy, that ones dead due to disease and to get rid of it already 😂 I wasn't quite sure why they said that, a tiny bit of the cotyledons had a slightly yellow tint and due to that someone said that it's damping off and to discard it but I wasn't quite sure, thank you as well for instructing me how to do that I've been curious about that for a while!
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In the past I grew autos using a 18/6 light schedule and the growth was good. On my last 2 grows I've been keeping the lights on 24 hours a day and my growth has well exceeded my expectations. Growth is amazing at 24/0. Honestly I'm pretty impressed how fast they've grown.5x5 Gorilla tent
Spectrum King SK402 - 2× Optic XL1
Infinity T8 exhaust fan
Technaflora nutes
Nectar of the Gods soilComment
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18/6 from the start with photos is what most people and I do.
But I seen people do 24/0 with photo strains and they can handle it, no problem.
autos I would keep the lights on 24/0.Just because people are over 50 doesn’t mean they know everything.
You can teach a old dog new tricks - But it will still think the old ways are the “best” lolComment
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I did the 24/0, 20/4 before the switch, for me I prefer 18/6 cuz like humans they need to rest.Light: Viparspectra P2000, Viparspectra P1500, Viparspectra XS2000, KingLed 1500
Medium: organic, Fafard perlite, Fafard Urban Garden organic mix, Organic compost shrimps.
Nutrients: Alaskan Fish, Advanced Nutrients Big Bud, Advanced Nutrients Ancient Earth, Advanced Nutrients Sensi Cal Mag Xtra
Full auto grow
Grow room : 8X12X10, 2 industrial fans, 1 dehumidifier, 1 Vivosun carbon filter & controller
12 Wild Thailand Ryder from WOSComment
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I was doing 18/6 but recently I switched to 24/0. Seems to be working fine so far. I have both autos and photos in coco and soil (separate, not mixed) and they all seem to like the adjustment. I thought about doing 20/4 for the extra light time but still with a little break, but decided against it this time. Not really an answer for your question but I think lighting is all personal preference and what will work for you. Happy growing!Comment
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