The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
CFLs for seedlings. How many watts?
JustAnotherGardener
started grow question 5y ago
How many watts of CFL to use for the first few days of seedling/veg. hoping to move to LED later on. any suggestions welcome.
Solved
Setup. Seedling
likes
DoctorGreenThumb
answered grow question 5y ago
If it's just for one seed. 23 watt 6500k bulb will do. Just keep it 3 to 4 inches above the seed when it pops out. If you don't have a 6500k bulb 5000k will do. Best of luck with your grow.
1 like
Complain
Selected By The Grower
JustAnotherGardener
answered grow question 5y ago
One seedling in a small ten 2x2 feet (60x60 cm)
likes
Complain
DoctorGreenThumb
answered grow question 5y ago
That depends on how many seedlings and size of the space.
1 like
Complain
Similar Grow Questions
Solved
dillande3
Seedling looks so sad, Whats missing?
Hello, L Haze seed sprouted successfully, planted directly to grow media (compost+coir+psoil) seedling came up successfully too, i coverd it with cup dome, after just 12 hrs it just bend , didnt give any light yet. What should i do guys pls sup, shall i put some small light?
Other. General questions
Setup. Seedling
3y ago
10
6
Solved
Royalgorillaxx
Tips for new grower
Is it wrong that i have my tent open like this? Are my plants healthy? Any tips please? First grow. 2 of white widow. The left one has bigger leaves than the other..
Leaves. Other
Plant. Other
Setup. Seedling
5y ago
2
3
Solved
Kourtney80
Seedling yellowing?
Hi, this seedling is about 2-3 weeks old, I’ve only been feeding it water at a ph of 6-6.5. This is my first time growing ever and I’m not sure if it’s normal or not, please could you help me?😅 it can’t be heat as my lights only 60w
Leaves. Color - Yellow
Setup. Seedling
6y ago
3
4
Solved
darbyog
Distance from pot to light during germination
Worried about our light power and distance to the pots, should we be running it at full power with the light higher in the tent or vice versa? Also very unsure about watering amounts in these early stages and is it okay for water droplets to be sitting on the growth? TIA
Week 1
Setup. Strain - Autoflowering
Setup. Lighting
Setup. Seedling
6y ago
4
4
Solved
LostInTransit23
Should I put the light on before sprouting or not?
I'm most likely going to be transferring my autos from paper towel into my medium, I've heard some people say have the light on before they sprout and some who say after it's sprout, which is the best thing to do?
Plant. Other
Setup. Lighting
Setup. Seedling
6y ago
2
2
Solved
RndmGrwr
Cotyledons curling upwards - the others didn't do this? :(
I'm not sure what's going on! The two others didn't do this. I'm using ViparSpectra XS2000 at 24" distance and 50% intensity.
Leaves. Curl up
Setup. Seedling
4y ago
1
Solved
naja1
Curved baby leaves
hello, I found my fat banana a bit odd this morning (Day 1). Her leaves are a bit curved, do I need to be worried? thank you folks
Week 1
Leaves. Curl down
Setup. Seedling
5y ago
4
2
Solved
coloradohomegrower
Abnormal Seedling?
First time grower, does this seedling look ok? First true leaves looking short and slightly curled. Seed popped last Thursday 1/14. Using buildasoil v 3.0 and watering two shot glasses worth of water ph 6.5. Just want to make sure I shouldn’t be doing something else.
Setup. Seedling
Germination. Other
5y ago
2
5
Solved
CaptainChunk
Hey guys. First grow. Yellow spots curling edges on my BF Wedding Cake Auto. What should i do?
Hey guys. 7 days old, growing in biobizz lightmix+biotabs starter kit soil. My LED 260W light is 90cm (3ft) away from the plant. Watering 100-150ml of 6.5ph water once every 2 days. Also leaves started to curl a little. Other identical plant looks fine. Should i be worried? thx
Leaves. Curl up
Leaves. Color - Yellow
Setup. Seedling
5y ago
1
1
Solved
Roxie_xx
Plant fell over after watering?
So I watered my 3 week old plants and one of them straight up collapsed to the side after I put water on it I’ve now propped it up with a straw, I really hope I haven’t done damage :(
Setup. Seedling
Feeding. Other
6y ago
1
1
Solved
GronkLeague
Second seed had been growing wrong way up.
Turns out my second seed was growing upside down and the taproot had been growing towards the light for ~8 days. I've since transplanted and the seed doesn't seem to be growing much at all; although it has changed colour from being a yellowish hue to green. Is it likely a dud now
Week 2
Other. General questions
Setup. Strain - Autoflowering
Setup. Seedling
6y ago
4
3
Solved
OnKloudNine
Seed no flower
Hey so I'm on day 3/4 germination seed in soil, I'm not seeing a lead is she dead or should I turn the lights on now? Thanks
Setup. Seedling
3y ago
1
Solved
OmgLegendary
Coco Seedlings slow and yellowing Overwatered/high Ph
Autoflower seedlings are 11 days out of the coco,bit light green yellowish from start. I gave too much water with ph around 7.5 which i saw after testing my tap water with teststrips today. No growth for last few days Ordered digital ph meter and ph down, is it worth to continue?
Leaves. Color - Yellow
Setup. Strain - Autoflowering
Setup. Seedling
2y ago
3
3
Solved
Horseluisweed
Ventilación y Luz en plantulas
Me inspiré en McGyver y he puesto un armario improvisado... Cómo de importante es la ventilación en esta etapa de plantula?🌬️ (He dejado la puerta entreabierta por las dudas)🤔 También he puesto otra luz auxiliar..se notará en el crecimiento o desperdicio luz?🔌🔋
Week 1
Setup. Lighting
Setup. Ventilation
Setup. Seedling
4y ago
3
2
Solved
Barb420
Humidifier
My RAM Humidifier So on all the time or once ever 30 minutes for 15mins?????? Not sure what’s best Help Please 🤔💭
Week 1
Setup. Seedling
4y ago
5
4
Solved
Frosty_Buds
Mould on seedling
This seed was late to spawn. Now it finally opened, even if it's quite short on the soil. I can see a fluff of mould just below the cotyledons. What should I do? Can I save it or do I risk contaminating the rest of the plants in the growbox?
Other. Mold
Setup. Seedling
2y ago
4
4
Solved
grasSHOPPER420
Helmet head help!!!!
So I had a seed that sprouted days ago that still had helmet head. I read online to gently squeeze with a pair of tweezers& remove it . I tried and soon found out that it just wasn't done it business. It was a few inches tall though. Will it bounce back or die. Anything I can do?
Plant. Other
Setup. Seedling
6y ago
1
2
Solved
versace_grow
Seeds in 12/12
Does keeping seedlings just the first week under a 12/12 light cycle can hurt them? I have some seeds that are not sprouting after 7 days, maybe it's because the outside temperature is too low so I decided to keep them in my growbox with my other flowering plants until they start
Setup. Seeds
Setup. Lighting
Setup. Seedling
6y ago
1
1
Solved
buddhi_coop
Mulch layer on Seeds
Does anyone use rice hulls as a mulch? I’m trying to follow the build a soil way & he uses a mulch layer even on his seeds. I’m too scared to try that since I’m new unless any of you have had success while doing this. Any pointers will help me out a lot.
Setup. Seeds
Setup. Seedling
Germination. Substrate
4y ago
1
1
Solved
karitacyan
How much should i water in the beggining?
I'm growing Green Gelato Auto from RQS, this is the first day and it's hot outside (31ºC). I don't know if I'm watering too much or too little. I spray with water 10 times but it dries up after a few hours. Should I water it more?
Setup. Strain - Autoflowering
Setup. Seeds
Setup. Seedling
6mo ago
5
5