The Grow Awards 2026 🏆 
SF1000
Wakesk8started grow question 5y ago
SF1000 spider farmer best distance for seeding/vegetation/blooming not according to the manual but according to your experience...Let me know
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Setup. Lighting
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Onlypotent420
Hps mixed with mars hydro 600 yield?Hey all! So i been thinking about ways to cut heat of course lol. So I’m thinking about getting a mars hydro 600 and running it with my 400w hps at 250w on the dimmer. Do you guys think I will yield about the same as if I was just running the hps on super lumens?5y ago
3
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Janus_Garus
Led on 18/6 grow/flower photoperiodI have the idea to put a led in my second tent for pre growing photoperiod girls, I have some room left over for some autoflowers who also grow & flower on 18/6 light - leds can switch between grow/flower.
If I switch the led to flower will that be OK for my photoperiod girls?Setup. Lighting
5y ago
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buddhi_coop
Set Up TentHow should I set up my carbon filter, exhaust fan & air ducts? I’m in limited space right now but want to make sure I get good air circulation still. I set it up the wrong way the last time I had it up but it was already up so I just left it. Also, my fans. Where should they go ?Setup. Lighting
Setup. Ventilation
Setup. Other
4y ago
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Jack22
Lights and plantsHello grow masters! I would like to ask you if mh 250w and hps 250w are good for veg (the fist one) and flower (the second one) in my 80x80x170. I would appreciate some opinions and advices about my 3 ladies too. Remind that this if my first indoor grow so don't be bad with me!6y ago
4
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DeepWaterGrower
LIGHT SPECTRUM, is that a good one for growing cannabis?Hi guys,
in the future I plan to upgrade from the current 2x2 box/150w LED.
I was thinking of a 4x4 area with 500w LED.
I came across an interesting 500w led lamp for quality/price and this is the spectrum chart, does it seem suitable for growing cannabis?Setup. Lighting
3y ago
2
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ToRuL88
A cuanto % de potencia pongo el led en crecimiento y en floración led 650wUso el marsh hydro fc e6500 650w en armario de 1.50x1.50 y 27 plantas, alguien sabe si poniendo el led al 40% de potencia está bien para la segunda semana de crecimiento? Luego voy subiendo? Hasta llegar al 100% por favor no encuentro información de este tema por internet. THANKSSetup. Lighting
3y ago
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Rastaluna
Light heightWhat do you think guys, should i lower the light at 60 cm veg switch on ?Week 2
Setup. Lighting
5y ago
7
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Eliott42
Have to hide my lovevly plant, what to do?Funny question, my landlord has to come over to check some stuff in my flat. I'll obviously have to hide it but it will change the light schedule, it's gonna be longer in the dark (probably around 3hours more). Is it a problem?
Can i hide the plant somewhere without hurting it?5y ago
3
4
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mexycomeback
Light pointed at white wall for supplemental lighting?Does it makes sense to have a small 300W COB LED pointed at the white flat painted wall for supplemental lighting?
If I point the light directly at the plants I would surely burn them but have no space to move back.Week 9
Setup. Lighting
5y ago
3
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BarrelOfTheBong
Found a cheap light that I think would be perfect in my small tent, would it?Would this light be good to add to my setup? (60W 55 draw cob in a 40x40x120cm tent)
://i.imgur.com/VTayXRu.png
4500 Lumen
4000 or 6400 Kelvin
50 Watt
(I already know there is much better, but know I am asking about this one)Setup. Lighting
4y ago
3
2
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dzdr2023
Light distance from plant topMy light is https://phytolite.com/pl_PL/shop/product/cree-naked-cob-60w-327
Recommended dist. to plant top by manufacturer is 40cm (16in) . Mine dist. is 58cm (23in) currently as I tried to keep it far during seedling stage, can I lower the lamp to 40cm at this stage? (day 11)Week 2
Setup. Lighting
5y ago
1
2
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antekirtt
Uncommon brand LED lamp distanceI have the following lamp:
LED Alien strippanel 630W, full spectrum, PPF 1700 umol /s, efficacy 2.7 umol/J
Does anyone have the same?
I have some issues on understanding the distance from canopy, the specifications say 15.2cm above it, but honestly it seems too close.Week 1
Setup. Lighting
3y ago
8
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GreenHillZone
PAR/PPFD and light heightPAR/PPFD: does light height matter if your PPFD is in the right range? Another way to ask: is 300 PPFD @ 2 feet the same as 300 PPFD @ 20 feet, or are there other factors involved? (assuming heat, C02, all other non light inputs equal)Setup. Lighting
5y ago
4
2
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LuckyGrower
Does growing with 3 lamps worth? Are lumens higher if i have more lamps? Or i m just stacking tamperature ?Week 1
Setup. Lighting
6y ago
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