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:

  • All amounts above are measured per 5 gallons of water.

  • Orca and Silica stay at 5 ml (total) per 5 gallons throughout.

  • Rapid Start is for seedling stage only.

  • pH: 6.1 in veg; 5.8 in flower.

  • Monitor EC/PPM and adjust slightly if needed.

Ben's Light Schedule for DWC Grows

Seedling Phase (Weeks 0 - 1)

  • Light Cycle: 20 hours ON / 4 hours OFF

  • PPFD: 100-250 µmol/m²/s

  • Light Height: ~36+ inches above canopy

  • Intensity: 10-25% (adjust based on stretch)

Veg Phase (Weeks 1–6+)

  • Light Cycle: 18 hours ON / 6 hours OFF

  • PPFD: 300–500 µmol/m²/s

  • Light Height: ~22 inches above canopy

  • Intensity: 25-50% (adjust based on stretch)

Transition Week (Week 1-6)

  • Light Cycle: 18/6 → 12/12 (flip day-one of flower)

  • Intensity: 50-60%

  • Light Height: ~12–18 inches above canopy

Flower Phase (Weeks 6–10+)

  • Light Cycle: 12/12

  • PPFD: 600–1000 µmol/m²/s

  • Light Height: 12–18 inches above canopy

  • Intensity: 60-75% for most lights

  • Optional: Dial back intensity slightly in final week if foxtailing occurs

Final Week (Ripening / Flush)

  • Light Cycle: 12/12

  • Intensity: 50%

  • Optional: 48 hours of darkness before harvest