My DWC Nutrient Schedule
This is the exact schedule I follow for my DWC grows using the General Hydroponics 3-Part Flora Series and my preferred additives. All measurements are per gallon of water.
I maintain pH at 6.1 throughout veg and 5.8 in flower. I never exceed 5 ml of Orca or Silica per 5 gallons, and I only use Rapid Start during the seedling stage.
Use this as a baseline and adjust if your plants show signs of stress or hunger.
Note: General Hydroponics, Advanced Nutrients, Bloom City, Plant Success (or ANY other nutrient/additive brand mentioned on this website,) is in no way affiliated with UTF Media Co., Ben Chasin' Big Budz, or any of the sponsors/affiliates contracted with UTF Media Co.
This is only a reference/guide therefore, NONE of these brands are recommended. It's just what I use.
Sincerely,
Ben 😎
Nutrient Table
Notes:
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All amounts above are measured per 5 gallons of water.
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Orca and Silica stay at 5 ml (total) per 5 gallons throughout.
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Rapid Start is for seedling stage only.
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pH: 6.1 in veg; 5.8 in flower.
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Monitor EC/PPM and adjust slightly if needed.
Ben's Light Schedule for DWC Grows
Seedling Phase (Weeks 0 - 1)
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Light Cycle: 20 hours ON / 4 hours OFF
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PPFD: 100-250 µmol/m²/s
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Light Height: ~36+ inches above canopy
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Intensity: 10-25% (adjust based on stretch)
Veg Phase (Weeks 1–6+)
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Light Cycle: 18 hours ON / 6 hours OFF
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PPFD: 300–500 µmol/m²/s
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Light Height: ~22 inches above canopy
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Intensity: 25-50% (adjust based on stretch)
Transition Week (Week 1-6)
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Light Cycle: 18/6 → 12/12 (flip day-one of flower)
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Intensity: 50-60%
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Light Height: ~12–18 inches above canopy
Flower Phase (Weeks 6–10+)
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Light Cycle: 12/12
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PPFD: 600–1000 µmol/m²/s
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Light Height: 12–18 inches above canopy
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Intensity: 60-75% for most lights
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Optional: Dial back intensity slightly in final week if foxtailing occurs
Final Week (Ripening / Flush)
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Light Cycle: 12/12
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Intensity: 50%
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Optional: 48 hours of darkness before harvest