Hydro-CalcPrecision Hydroponics

A professional tool for building, optimizing, and managing fertilizer mixtures.

Powerful Solver

Automatically calculate the exact amounts of salts needed to hit your target PPMs.

Control solver settings by setting minimums, maximums, and more to hit targets prefectly.

Share created mixtures or import those from others, use cloning tools to match outputs with other inputs.

Create and manage your targets, substances, and water quality inputs for the solver.

Track applications, measurements, and costs over time with our logging system.

Nutrient targets and 50+ substances integrated.

2/27/2026

We're continuously working to improve the Hydro-Calc experience. Today's update brings a few minor refinements to our user interface.

Refined Tooltips: We've reviewed and updated various tooltips across the application to be more concise and clear.
General Maintenance: Addressed various small UI inconsistencies under the hood to ensure a smoother experience throughout the platform.