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Back to Grow Questions
Recommended PPFD Levels for Each Growth Stage
De_Wietkoning
started grow question 19h ago
I have three growing stages: 1. Seedling 2. Vegetative 3. Flowering What is the recommended PPFD (µmol/m²/s) for each stage? I would like to know the ideal light intensity for each phase to ensure healthy plant growth and avoid light stress.
Solved
Setup. Sensors
likes
KuaerSchlaeger
answered grow question 1d ago
Hi. That‘s around…. Seeding : 100-300 Veg: 300-600 Flow: 600-900+
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Selected By The Grower
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Solved
AirDuster
Help in understanding instrument readings for hydro
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Week 6
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6y ago
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Week 8
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6y ago
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TripleCcannabis
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6y ago
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PhunkyPhallus
How do you measure CO2?
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Week 1
Setup. Sensors
Feeding. Other
4y ago
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Week 1
Setup. Sensors
3y ago
2
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Setup. Sensors
3y ago
2
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NCgrower252
Cord for Vivosun Controller to automate an electric heater
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Week 15
Setup. Sensors
Setup. Other
4y ago
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Solved
Hisknibbs935
Pre run test showing high temp and low humidity,
Hello,I have pre run to test the temps and humidity on my first one ,i run a 600w hps in a 1x1x2 tent with 5 inch rvksileo extract my temps at at 35c and my humidity below 30 despite setting for 55% would a test without a plant be false ? Should i drop to 400 ?
Setup. Sensors
Setup. Lighting
6y ago
1
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Solved
Splint
Which device for ppfd?
Not directly a grow question, but: Which device are you guys using and/or recommending for measuring ppfd? I’m on a TIGHT budget and it needs to be shippable to Germany or at least Europe. I don’t really know anything about ppfd. Pic is just for visibility.
Other. General questions
Other. Other
Setup. Sensors
1mo ago
1
7
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AirDuster
Reducing PPM without changing water in hydro
Thanks all for guidance on my previous question. As a follow up, can PPM be lowered by reducing feeding until they hit the right range? Currently 1500ppm but seems this is too high. Currently following the AdvancedNutrients plan.
Other. General questions
Setup. Sensors
Feeding. Schedule
6y ago
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When in grow process to set up Blumat auto watering system
I'm getting ready to set up an automatic watering system using Blumats for the first time. Should I wait until the plants are at a certain level of development? Thanks
Week 4
Setup. Sensors
7y ago
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Week 6
Setup. Sensors
2y ago
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Week 11
Setup. Sensors
6y ago
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Setup. Sensors
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4y ago
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Minnesota_Grows_420
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Week 2
Setup. Sensors
3y ago
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Mousey
Monitoring pH?
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Week 14
Setup. Sensors
7y ago
6
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Solved
Poppetnewbie
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Week 2
Setup. Sensors
5y ago
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ItalianDesertBalcony
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Setup. Strain - Autoflowering
Setup. Substrates
Setup. Sensors
1y ago
3
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Solved
NomadGrowDad
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Setup. Sensors
6y ago
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CANNA_401
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Week 3
Other. General questions
Setup. Sensors
Setup. Other
3y ago
7
1