Field notes
Practical guidance for the work at hand.
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17 field notes
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Aquaponics · pH · alkalinity
When Aquaponic pH Falls, Read the Alkalinity
A practical way to read pH drift, alkalinity, source water, and nitrification together—without turning a coupled biological system into a dosing contest.
· 3 min read
Aquaponics · dissolved oxygen · aeration
Where Dissolved Oxygen Runs Out First in Aquaponics
How to reason about dissolved oxygen across fish tanks, biofilters, and root zones, then design monitoring and backup around the weakest point.
· 3 min read
Aquaponics · pumps · sump
Seven Checks Before You Choose an Aquaponic Pump
A field guide to flow, total dynamic head, sump capacity, bypasses, maintenance, and backup—because the label on a pump is not its delivered flow.
· 3 min read
Aquaculture · fish health · biosecurity
The Morning the Fish Stop Feeding in an Aquaculture System
A prevention-first record for behavior, feeding, water quality, mortality, stock movements, and veterinary escalation in aquaculture and aquaponics.
· 3 min read
Aquaponics · nutrients · mineralization
Trace a Yellow Leaf Back Through the Aquaponic System
How to investigate aquaponic nutrient problems without guessing: confirm water chemistry, crop pattern, source water, feed, solids, and lab evidence in order.
· 9 min read
Hydroponics · EC · pH
Reading Hydroponic EC Without Guessing at Nutrient Balance
A disciplined reservoir record that separates total dissolved salts from nutrient balance and makes pH, EC, water use, temperature, and crop response interpretable.
· 3 min read
Hydroponics · lighting · DLI
The Price of Light in Hydroponic Production
A grower-first lighting decision built around canopy measurements, daily light integral, uniformity, heat, controls, and the value of the crop response.
· 3 min read
Cross-segment · IPM · beneficial insects
Beneficial Insects, One Scouting Cycle at a Time
Biological control works as part of integrated pest management: identify the pest, map pressure, act early, protect compatibility, and record what happened.
· 3 min read