Day 22: New air gap, active growth · Autoflower Cannabis in a LetPot: Air Gap and Droop Recovery

Visual evidence

What Dud2Bud observed

The plant is visibly larger and still producing active top growth. Most severe discoloration remains on older foliage, while the recent air-gap adjustment has not had enough time for a fair biological response assessment.

The upper canopy is larger than in the previous photo.

The main stem remains upright and supports substantial new growth.

The top leaves are still developing and are not broadly necrotic.

The plant has continued vegetative growth despite the earlier setback.

Older lower leaves show extensive yellowing, browning, and necrotic patches.

Some current leaves have yellowing along edges and tips.

The canopy still has some downward leaf angle.

The waterline and roots are not visible.

Old damage

Severely browned lower leaves that were already damaged before the recent waterline change.

Old damage

Existing necrotic patches and brown tips that cannot reverse.

Still uncertain

Only 14.6 hours have passed since the previous photo and the reported waterline adjustment.

Still uncertain

The current photo has different lighting and framing.

Still uncertain

It is unclear whether yellowing on middle leaves is new or previously present.

Still uncertain

The final nutrient strength after the half-strength top-up is unknown.

Dud2Bud decision

Let the lowered waterline settle

The root-zone air gap was just changed, so another nutrient or water adjustment would make the next comparison harder to interpret.

What to do

Hold the new waterline steady

Do not add nutrients, dilute the reservoir, or change the waterline again today. The air-gap adjustment is too recent to judge, and the active top growth is still viable.

1 Leave the waterline at its newly lowered position.
2 Do not add A/B or supplements.
3 Wait for a meaningful comparison window before making another reservoir change.

Exact change

none

Keep steady

Keep the lowered waterline, current half-strength solution, light schedule, and airflow unchanged.

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Full assessment

How this photo was assessed

The report separates visible facts, possible explanations and the final care decision so uncertainty remains visible.

Visible evidence What was visible in the photo

Vigor

Improving

Current vigor is better in the active growth than in the older leaves.

Confidence: 75%

Color Analysis

Watch

Color remains mixed. It is too soon to decide whether the half-strength solution is too weak, too strong, or simply being processed after prior root stress.

Confidence: 70%

Growth Development

Improving

Vegetative development is continuing despite residual damage.

Confidence: 86%

Progress Comparison

Improving

The visual direction remains positive, but the recent root-zone change is too new to verify.

Confidence: 78%

Damage Classification

Watch

The plant is still recovering, but fresh growth should be checked for any new tip burn or yellowing over a longer interval.

Confidence: 72%

Distribution Analysis

Improving

The dominant pattern is recovery from earlier stress rather than a confirmed new whole-plant collapse.

Confidence: 80%

Possible mechanisms What could explain it

Disease

Watch

Root disease cannot be ruled out, but current evidence does not justify treatment while new growth remains active.

Confidence: 48%

Nutrition

Watch

Nutrition may still be imperfect, but changing strength again now would confound the recent air-gap adjustment.

Confidence: 53%

Environment

Watch

Environmental demand may affect posture and color, but no environmental change should be added during this short verification window.

Confidence: 50%

Biotic Damage

Clear

Pests are not the leading explanation.

Confidence: 77%

Water Relations

Watch

The adjustment may improve root oxygen, but the plant needs more than a few hours before its effect can be judged.

Confidence: 62%

Structural Analysis

Improving

Structural function is adequate and does not need intervention today.

Confidence: 76%

Decision checks Why this action was chosen

Recovery

Improving

Recovery remains the best overall interpretation, but the recent air-gap change is not yet verified.

Confidence: 82%

Information Gap

Watch

More evidence would help if new growth worsens, but it would not change today's decision to wait.

Confidence: 72%

Limiting Factor

Watch

No single active limitation is clear enough to justify another correction today.

Confidence: 56%

Confidence Audit

Improving

Confidence is good for continued recovery monitoring and low-change care, but not for declaring the root-zone adjustment successful.

Confidence: 80%

Intervention Evaluation

Unknown

The waterline adjustment should be held steady rather than judged or followed by another change immediately.

Confidence: 72%

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This supporting report documents the visual evidence and care decision from one point in a longer plant journey. It is not indexed separately from the main plant story.