The Grow Awards 2026 🏆 
When to put the light on?
Panzorastarted grow question 4y ago
Hey there,
Do you need to put the light on the pots directly after you planted the seeds in the ground? Or do you need to wait untill they poke true the ground and then put the light on them?
Solved
Setup. Lighting
likes
Aqueminianswered grow question 4y ago
Plant can't absorb light till leaves open. But I leave the lights on anyway because I don't mind paying my electricity bill.
Similar Grow Questions
Solved
rcs8718
Proper height for T5 dual lamps from seedlings during sprouting stageI now have my seedlings in solo cups and they are just breaking the surface, what is the height I should have my T5 twin lamps from the top of the cups? I have it currently at about 4 inches from the top of the cups.Setup. Lighting
5y ago
1
1
Solved
Jmaninthemidde420
When yo increase light intensityIs it safe to increase light intensity on this seedling yet? If not when would u increase light intensity? I have 1 main light on top and 2 side lights on it. I have 2 more side lights. I want to gradually add light from what I’ve heard. it get 50% extra natural light from windowWeek 2
Setup. Lighting
3y ago
1
1
Solved
Jhort
Is this stunted or normal?This plant is 36 days old. Does it look behind or on track to you? I'm wondering if I stunted it or of I'm just over thinking it.
I'd love to hear any feedback but especially want to know how you think the size is. Also light to weak? 54watt optic phantom5y ago
6
2
Solved
Growador
Mars hydro led’sHi everyone, small question, I wanted to know if mars hydro is safe compared to the other big brands. I want to go with 3 sp6500 but still scared if something will happen to the chips of led. Still doesn’t know if i go with led or remain with hps. I need all the answers from you!Week 6
Setup. Lighting
5y ago
3
3
Solved
TheChronicHunter
11/13 for flowerI need my grow to finish flowering ASAP, due to extenuating circumstances... I’ve read that flower can occur faster under 11/13 with some loss of yield. Does anyone have experience here? How much will yield and flowering time be influenced?Setup. Lighting
5y ago
2
3
Solved
420_Little_Green_Fingerz
Light schedule - I am about a week off being ready to harvest. I currently have the lights on 24h. Should I introduce dark periods and or a 24/48h complete darkness before harvest?
ThanksBuds. Other
Setup. Strain - Autoflowering
Setup. Lighting
5y ago
1
4
Solved
buddhi_coop
Light timerAre these reliable? Have to go out of town this weekend Saturday -Sunday , my light schedule is 18/6 2pm-8pm lights off. & The digital timer vs the manual timer ?Other. Other
Setup. Lighting
Setup. Other
5y ago
4
4
Solved
just4funm23
required lightningWhat is the required amount of lightning in a 100x100x180 tent for 1-2 plants with a pretty decent yield? how can I calculate it for myself?Other. General questions
Setup. Lighting
2y ago
9
7
Solved
sloppyjohn
How to make stronger smell and flavour in DWC grows?Hi guys. Just harvested my second ever harvest, and 2nd time with DWC. Using HPS, then CMH for last 2 weeks
I'm really happy with buds, but the smell is a little less intense that I would like.
I have used Cannaboost, which is supposed to increase flavour but I want more! :)Setup. Lighting
Feeding. Chemical composition
5y ago
6
Solved
HappySkunk
Idiot - new light, wrong sized grow tentSo I’m an idiot. All this time I thought I had and 80/80cm grow tent, when it turns out it’s actually 60/60, and I of course just ordered the SF2000 light, which is almost 65cms on one side. Should I just order a new tent right away to make it fit? Or could it be squeezed in? 😭Setup. Lighting
6y ago
1
1
Solved
Screwie
Different light for flowering stage?Second time grower and first time blogger. Have yet to post yet but i'm getting prepared before receiving seeds in a couple of days. My question is, is it advisable to get a different watt light 4 the flowering stage? I have a Mars Hydro 300W light and a Q60 Homebox Ambient tent.Setup. Lighting
5y ago
2
2
Solved
FlynnRyder
Where am I going wrong? Beginner, SSH, RDWC, 100 GAL, SF4000 etc.So I am super excited did a bunch of research built the system and considered every factor I have come across. I am now into Week 3 from when my seeds popped and I am just sick of seeing them small. I don't understand where I am going wrong5y ago
6
3
Solved
ShivaPriya
Shifting outdoor plants from outdoor to indoorSo I was wondering if outdoor plants(week 2) getting regular sunlight (~12-13 hours) can be shifted indoors for faster growing (18/6 or 24/0 or 20/4)?
Anyone tried before? it is safe? Will it cause to make them hermaphrodite?Week 1
Setup. Lighting
5y ago
4
4
Solved
Mosherd7
My grow tent is sitting in my basement, which normally sits at 10C in the winter, so I set the heat in the room to 18C and the LED and 2 fans heat it to 20.4C in the tent.
Anyone have a similar setup but using their grow lights as a heat source? Heating a basement is expensive.Setup. Lighting
6y ago
2
10