悟る · diagnose & fix
Cannabis pH Lockout
Nutrient deficiency · also: nutrient lockout, ph problem, multiple deficiencies at once
Several deficiencies appearing at once despite feeding — the root-zone pH is out of range and blocking uptake.
Not sure it's ph lockout?
Snap a photo and get a free read — no signup. Satoru weighs the visual against the conditions that cause look-alikes, so you treat the real problem.
What it looks like
A confusing mix of deficiency symptoms (yellowing, spotting, burnt edges) showing up TOGETHER even though you're feeding correctly. The tell is that more food makes it worse, not better.
Symptoms
- Multiple deficiency signs at once
- Symptoms persist or worsen despite feeding
- Spotting and yellowing across different leaves
- Stalled growth
Causes
- Root-zone pH outside the uptake window (soil 6.0–7.0; hydro/coco 5.5–6.5)
- Salt buildup shifting pH
- Unbuffered or extreme-pH water
How to fix it
- 1Measure runoff/reservoir pH — don't assume
- 2Flush with correctly pH'd water to reset the root zone
- 3Resume feeding at proper pH and moderate strength
Prevention
- pH every feed and reservoir
- Flush periodically to prevent salt buildup
- Use pH-stable, buffered inputs
悟る · how satoru tells it apart
When deficiencies pile up despite feeding, the cause is almost always pH — not five separate shortages. Satoru flags the pattern from your logs so you fix one thing instead of chasing five.
Commonly confused with: Nitrogen Deficiency, Calcium & Magnesium (Cal-Mag) Deficiency, Potassium Deficiency.
Not sure it's ph lockout?
Snap a photo and get a free read — no signup. Satoru weighs the visual against the conditions that cause look-alikes, so you treat the real problem.
More plant problems
Educational reference for cultivation troubleshooting. Symptoms overlap — when in doubt, match against your own conditions. Satoru fuses your photo with your logged environment for a grounded read.