Quick answer: Hydroponic cannabis still follows veg to flower, but you manage reservoir strength, pH, and oxygenation on a tighter loop than soil. Use the tables below as starting example ranges. Then follow your nutrient brand’s label and plant feedback (color, tip burn, runoff/reservoir readings).

This URL is the schedule and feed framework page. Environment builds, system plumbing, and medium comparisons stay on Kind Seed Co hydro sibling articles. Link them. Do not merge titles.

Before You Start

• Confirm your system type: DWC, recirculating drip/RDWC, coco (often fed like hydro), etc.
• Calibrate pH and EC/PPM meters
• Start feeds mild (many growers begin near half-strength when unsure)
• Keep solution temperatures in a comfortable range for oxygen (overly warm reservoirs stress roots)
• Local law first. Grow only where legal

Hydro is precise, not magical. Overly strong bottles in week one cause more problems than “weak” feeds.

Example Targets (Not Brand Lock-In)

Stage	pH (hydro example)	EC (example)	PPM (approx., 500-scale)	Notes
Seedling / early rooted clone	~5.5-6.0	~0.4-0.8	~200-400	Very mild
Early veg	~5.5-6.2	~0.8-1.2	~400-600	Watch tips
Late veg	~5.5-6.2	~1.2-1.6	~600-800	Incremental bumps
Early flower / transition	~5.5-6.5	~1.4-1.8	~700-900	Shift NPK per label
Peak flower (example)	~5.8-6.5	~1.6-2.2	~800-1100	Cultivar-dependent
Late flower / fade	per label	taper	taper	Don’t invent harsh “flushes” as dogma

Always: product labels override blog tables. Scales differ (500 vs 700 PPM). EC is often clearer across meters.

Vegetative Schedule (Example Cadence)

Week 1 (veg)

Mild solution, stable pH, strong aeration in DWC. Lights on a vegetative photoperiod for photos. Focus on roots before hard training.

Week 2 (veg)

Slightly increase strength if plants are lime-green hungry without tip burn. Optional low-stress training starts here for many gardens. Gentle airflow toughens stems.

Extended veg (as needed)

Photoperiods can veg longer to fill ScrOG nets or tents. Autos will not wait. Keep autos on a separate mental calendar and avoid heavy transplants late.

Cross-link the soil feeding schedule only as “soil is different.” Do not absorb soil head terms.

Flowering Schedule (Example Week Labels)

Exact week counts vary by cultivar (8-week finishers are not 12-week finishers). Treat “Week 5” as a stage marker, not destiny.

Transition / flower week 1-2

Flip photos to flower photoperiod. Expect stretch. Keep EC moderate. Sudden spikes during stretch burn easily. Support humidity/VPD via environment guides (sibling URLs).

Mid flower

Increase bloom nutrients per label if plants ask for it. Monitor reservoir EC drift. Plants uptake water and nutrients at different rates, so top-offs change strength.

Late flower

Many recipes taper nitrogen and overall strength. Prioritize ripe signals over calendar bragging. Avoid last-minute drastic chemistry swings that shock roots.

DWC vs Recirculating Notes

Topic	DWC (example focus)	Recirculating / RDWC
Oxygen	Air stones / dissolved O2 critical	Same + even flow between sites
Reservoir changes	Full swaps on a cadence you can maintain	Shared res, contamination spreads faster
Temp	Warm buckets = risk	Chiller/help more common in larger loops
Monitoring	Per-bucket checks	Central EC/pH + spot-check plants

Coco drip systems often follow hydro-style schedules with frequent irrigations to runoff. Still not soil.

Troubleshooting Strength Issues

• Tip burn / clawing: Back off EC. Check pH lockout vs overfeed.
• Pale new growth: Confirm pH range and that roots are healthy before dumping more N.
• EC climbing in res: Plants drinking water faster than nutrients. Adjust top-off strategy.
• EC crashing: Hungry plants or measuring error. Verify meter calibration.

Half-Strength Start Rule

When you change brands, systems, or cultivars, begin near the low end of the label. Healthy lime-green growth with no tip burn beats a dark, clawed plant on “full strength” by week two. Increase in small steps every few days while reading the plant.

If you must translate a tsp/gallon chart from a public nutrient brand, treat it as that brand’s recipe only. Kind Seed Co is not endorsing a single bottled line. Example EC bands exist so any quality hydro fertilizer can be managed with meters.

Light and Training Touches by Stage

Schedule pages get asked about training timing:

• Early veg: gentle LST OK once roots are established
• Late veg: topping healed before flip, ScrOG fill window
• Stretch: support and weave. Avoid brand-new high-stress topping on long stretches unless experienced

Full training tutorials remain on their own URLs.

Water Quality Basics

Know your source water EC before adding nutrients. Hard water already contributes minerals. Your “0.0” bottle recipe may actually start higher in the reservoir. Filtered or reverse-osmosis water gives more repeatable numbers but then requires Cal-Mag attention per your line’s guidance. Measure, don’t guess.

Example Week-Label Snapshot (Photoperiod)

Label	Grower focus
Veg W1	Mild EC, roots, stable pH
Veg W2+	Step EC, shape canopy
Flip W1-2	Stretch management, moderate EC
Mid flower	Peak bloom recipe per label
Late flower	Taper per cultivar cues

Autos compress this timeline. Never force an 11-week photo chart onto a 70-day auto.

Reservoir Hygiene Habits

• Clean reservoirs between runs
• Keep lids closed to block light (algae)
• Replace airstones that clog
• Record EC/pH daily until muscle memory forms

A pretty week-by-week chart fails if the bucket is filthy. Hygiene is part of the schedule.

Healthy schedules still need genetics that match your timeline. Browse autoflower packs for faster cycles or feminized photoperiods when you want longer veg control. Then feed to the plant in front of you.

Relationship to Soil Feeding Schedule

Soil buffers mistakes differently. Do not paste hydro EC numbers into soil diaries. Cross-link the soil feeding schedule for soil growers who landed here by accident, then return to hydro ranges.

FAQ

What pH should hydro cannabis run?

Many hydro gardens target roughly 5.5-6.5, with tighter bands by stage. Follow your nutrient line’s chart.

Should I copy a tsp/gallon chart from another brand?

Only if you use that product line. Otherwise translate to EC targets and your label’s recipe.

Can I use this schedule in soil?

No. Soil has different buffering and watering patterns. Use Kind Seed Co’s soil feeding schedule for that intent.

How often do I change the reservoir?

Depends on system size, plant count, and cleanliness. Set a repeatable cadence and watch EC/pH drift rather than waiting for smells.

Is higher EC always more yield?

No. Past a cultivar’s comfort zone you get burn and stall. Example ranges are ceilings to approach carefully, not trophies.