Hydroponics guides

Short guides for home growers. Each one links to the calculators that do the maths.

EC vs PPM ExplainedWhy two meters give two numbers, and which one to track.How Much Nutrient for a 5-Gallon BucketTurn a label dose into millilitres, step by step.Reservoir Maintenance ChecklistWhat to check daily, weekly and at every water change.

Estimates only: always follow your nutrient manufacturer's label and check your readings with a calibrated meter.