Observed arrival · 2026-08-25
Savialis, the Spanish hydroponics calculator
A free calculator that turns a grower’s target, fertilizer stock, and water analysis into nutrient weights and tank A/B assignments.
Field notes
The tool accepts a target crop and growth stage alongside the fertilizers available to the grower, then returns weights, tank placement, and elemental deviation. Its calculations are described as formula-derived rather than copied from product labels, with water contributions subtracted before the recipe is assembled. The site lists 26 fertilizers and includes crop coverage from tomato and lettuce to berries, brassicas, and root vegetables. It also explains why Mexican greenhouse calcium nitrate can make a Steiner recipe impossible when ammonium is present.
Observed signals
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Editorial observations of this landing page, not a rating.
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