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Back to Grow Questions
Ppfd?
2x2growing
started grow question 5y ago
What ppfd do you guys recommend for plants in veg? I’m finding that my light can be too strong at max power even at a 24” distance.
Solved
Week 6
Setup. Lighting
likes
HeavyHittah
answered grow question 5y ago
250 PPF for seedlings 400 to 600 for veg 600 to 850/900 in flower.
1 like
Complain
Selected By The Grower
GMSgrows
answered grow question 5y ago
Put your hand under the light at the height of your canopy., if your hand feels comfortable under the light for 1 minute then your girls will be fine. Cheers
2 likes
Complain
Similar Grow Questions
Solved
DennM39
Light distance from canopy
My 4x8 tent has two 2000watt led lights in it .. what’s a good distance to keep my lights above the canopy ?
Setup. Lighting
4y ago
1
1
Solved
Kolibri
Marshydro FC oder FC-E
Lohnt sich der Mehrpreis der FC Serie im Vergleich zur FC-E Serie? Auf dem Papier ist der Unterschied ja eher marginal.
Setup. Lighting
4y ago
1
2
Solved
Buddie
Light schedule
So I got a new timer and messed up schedule. Plants got 16 hrs of light, turned lights out as soon as I noticed (5am). 11am-11pm light.(5 weeks into flower) Should I let plants have 12hrs dark now and resume 12-12 , or let lights come on at 11am(6hrs dark)
Setup. Lighting
6y ago
1
1
Solved
Kronos56
Hybrid Light (Hps QB)
Anyone ever tried hps and led hybrid lights for a grow? What results did u get and what is ur take home message for growers using hybrid lights
Week 6
Setup. Lighting
4y ago
2
2
Solved
Tri_Op
Grams per watt
What’s the best gm per watt that someone here has gotten on a single plant? I’m aiming for 1gm per watt but doubt that she will yield 315gm once dried.
Week 10
Setup. Lighting
6y ago
2
2
Solved
Erasmus
How long should I wait to switch them to 12/12 hours light?
Week 4
Setup. Lighting
6y ago
1
5
Solved
Dillsnills
Should I support these seedlings or move them closer to the light? I added more soil to support them, let em go see what happens?
Should I support these seedlings or move them closer to the light? They seem to be sturdy. Glueberry Og Auto, 60rh 75 day temp 70 night, ViparSpectra p2000 24 inches at 25% power. They keep stretching jus looking for advice opinions on what to do plzz, 7 day's old.
Setup. Strain - Autoflowering
Setup. Lighting
Setup. Seedling
5y ago
3
5
Solved
kaiabel
Help, they start to taco.
I think its to bright and to hot, seeing some taco leaves. Sanlight on 100% for few days, temps go up to 32C Next plan is to add BB Grow,Bloom,CalMag,TopMax,BioHeaven,Activera,Algamic no Canna Mono Mag anymore. What do you guys say to feed? Light back to 80%? https://growdiaries
Leaves. Veins - stay green
Leaves. Color - Pale
Setup. Lighting
3y ago
1
3
Solved
SmokieMcPot
24/7 lighting autos
24/7 lighting on autos?? Thinking of giving it a shot, any reason not to? Would be easier on some of my equipment keeping that stable environment. Not worried about electric usage. How important is a dark cycle?
Setup. Lighting
3y ago
6
8
Solved
Feanor
FC3000 Light height and dim advice
What height and dim should I setup, right now working 90cm distance full power.(4x4 tent autoflowers first weeks of veg stage)
Setup. Lighting
3y ago
4
4
Solved
Ixnay
When to flip LED's 'bloom' switch on?
When's the best time to flip the 'bloom' switch on my LED with an auto? Should it be at the first sign of pistils or is there a better time to do so? I have already flipped the switch for this plant and kept photo-period the same, looking for info for next grow. Thanks!
Week 7
Setup. Lighting
6y ago
2
2
Solved
jimmminycricket
Can anyone recommend me a good led under 250$ thank ya the grow space is a 4x2 tent I was hoping to fit 8 autos not sure if that's possible
Setup. Strain - Autoflowering
Setup. Lighting
Setup. Other
6y ago
3
8
Solved
Listo
Light set up.
My only question i have is about my light set up. My plants are 7 days today and i noticed that my plants are all facing towards the light. I have my light at 60cm from the top of the plants and 75% on the dimmer. The light is also 1000 Watts. The tent size is 4x4.
Setup. Lighting
5y ago
1
Solved
88kasanova
Anyone have any suggestions? Do you think the lights I have is enough for 3 medium size plants? I have 2 300watt cob lights, and an atshark 1000watt led. The flower looks good for only week4 of flower
Week 6
Setup. Lighting
4y ago
1
1
Solved
AUTOASSASSIN215
New 4x4x8 Tent Need a better light 400 budget any suggestions??
I have a new 4x4x8 grow tent growing about 4 to 5 plants so now i have to upgrade the light i’m on a budget about 400 dollars Any suggestions or strategy
Setup. Lighting
5y ago
12
14
Solved
bobo66
does anyone use sanlight q6w gen1 215w leds? how high do you keep them?
I have 2 such lamps in a 4x4 tent, where I bought it, they said that there should be a distance of 50 cm between the two lights, but they didn't say how far I should keep the lights from the plants.. and who achieved what yield with it? https://www.divisionagro.ba/Products/Details/14
Setup. Lighting
3y ago
1
1
Solved
Mikewithgreenthumbs420
Buying a grow tent looking for better quality spider farm 2000 or Hydro mars 2000 set ups from Amazon
So im debating on which set up. I want a good set up came up with these two Spider farm 2000 24x47x71 or Hydro mars 2000 48x48x80 grow tents from amazon which one would get more plants looking for quality using burple led rite now any suggestions please help me Thanks
Other. Other
Setup. Lighting
5y ago
4
Solved
Deewy44
switching lights from veg to flower.
Hi. Ive seen a lot of growers leave there lights on 24hrs or 18/6. Ive always switched mine to 12/12 when switching to Flowering. Has anybody noticed a difference when leaving lights on 24hr or 18/6 instead of 12/12. Thanks.
Setup. Lighting
6y ago
2
2
Solved
agricola
Does anyone have experience with colas that have been severely light deprived, yet still have trichs?
My ghost nug grew up on the side of the tent blocked from light. She has trichs, looks super light yellow (see pics). My question is, wouldn't this be desirable? Less chlorophyll to wait on before smoking? Has anyone tried to maybe light deprive parts of their colas?
Week 12
Buds. Other
Setup. Lighting
Techniques. Other
6y ago
2
2
Solved
romi27
Lighting coverage
Will my viparspectra xs1500 have enough coverage once these plants get larger? Or will I need supplemental lighting? And if I do need more, am I better off getting the larger model, or just getting another identical unit so that I have 2?
Week 4
Setup. Lighting
5y ago
2
2