3D STUDIO

Water Chemistry Simulator

Model pH, GH, KH, nitrate and phosphate over time as substrate, hardscape, CO₂, fertiliser and water changes interact.

Interactive 10–20 min

Day 0
pH —
KH —

How to use it

Enter your source water parameters. Everything is modelled against that baseline.
Choose substrate and hardscape — each has a different effect on pH and hardness.
Set CO₂, fertiliser dose and water-change routine.
Run the simulation and watch the curves move. Aqua soil drives KH down; Seiryu pushes GH up.
Read the warnings: a pH crash, an ammonia peak, or a nitrate climb past 40 ppm.
Export a water report with the stable ranges and the recommended routine.

What it outputs

Stable pH range
GH / KH advice
Nitrate / phosphate balance
Water-change interval
Risk warnings
Water report export

Note. This is an educational model, not a prediction. Simulated results are indicative only — real aquariums involve live animals, and you should follow the equipment manufacturer's instructions and the welfare limits stated throughout this site. CO₂ above 30 ppm harms fish and shrimp.