Quick answer: Start with a single deep water culture (DWC) bucket in a closet or spare room. You need one 5-gallon light-proof reservoir, an air pump with a stone, a net pot filled with rinsed clay pebbles, a pH meter, an EC meter, and a veg-stage LED. Hold the water at 65 to 72°F, keep pH between 5.5 and 6.5, run 18 hours of light and 6 hours of dark, and swap the reservoir every 7 to 10 days. That rig carries one plant from seed to harvest with the fewest parts that can fail.

Cannabis Hydroponics Yield Per Plant

Prerequisites

  • Written confirmation of your state and local rules on home cultivation, plant counts, and container limits.
  • A space with a floor drain or a wet vac, a dedicated 15-amp circuit, and a door that closes.
  • A budget line for a pH meter and EC meter. Test strips are too coarse for hydroponics.
  • Water report or a tap-water test, so you know your starting hardness before you add nutrients.
  • Roughly 6 square feet of floor space per plant at maturity, plus 24 inches of headroom above the canopy.

Step-by-step setup

  1. Verify the current cultivation rules that apply to your address before you buy anything.
  2. Choose a deep water culture bucket for the first run. It has no pumps, timers, or sprayers to clog.
  3. Buy a reservoir that blocks all light. Wrap any translucent bucket in black-and-white poly film.
  4. Rinse the clay pebbles under running water until the runoff clears, then soak them for an hour.
  5. Fill the reservoir with tap water and let it sit 24 hours so chlorine off-gasses.
  6. Add nutrients at one-quarter of the label strength for seedlings and cuttings.
  7. Measure pH and adjust to 5.8, then measure EC and record both numbers in a log.
  8. Suspend the air stone at the bottom of the bucket and confirm steady bubbling before a plant goes in.
  9. Start the seed in a damp rockwool cube, keep it warm and dark until the taproot shows, then move it under light.
  10. Set the LED 24 to 36 inches above the seedling and run the veg schedule of 18 hours on and 6 hours off.
  11. Set the net pot so the bottom inch sits in the solution and the crown stays dry.
  12. Run an oscillating fan across the canopy, not straight into the root zone.

Daily and weekly routine

  1. Check pH and EC at the same time each day and log both readings.
  2. Top off with plain water when the level drops, then re-check EC.
  3. Change the full reservoir every 7 to 10 days with fresh nutrient solution.
  4. Inspect roots for brown slime or a sour smell at each change.
  5. Prune lower leaves that block airflow once the plant fills the space.

Mistakes that end first runs

  • Mixing full-strength nutrients for a seedling and burning the root tips.
  • Letting reservoir temperature climb past 72°F, which drops dissolved oxygen and invites root rot.
  • Skipping the EC meter and guessing at concentration.
  • Switching to 12 hours of dark too early and stalling vegetative growth.
  • Adding a second plant before the first run reaches harvest.

What the first run looks like

Expect the seedling to establish in 7 to 10 days, rapid vegetative growth from week 3 through week 6, and a stretch in the first two weeks after you flip the light schedule to 12 hours on and 12 off. Add a carbon filter before that flip, not after. Keep the log from run one. It becomes the baseline for every reservoir after it.

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