Fondsites Tools
Aquascape Studio
Water Change Planner
Suggest a starting water-change rhythm that fits a planted aquarium's stability and the keeper's access.
Water changes are a routine, not a punishment. The right amount depends on stocking, feeding, tank age, source water, and what tests show.
This planner gives a starting rhythm and names what to watch before changing it.
Interactive Tool
Water Change Planner
Change the inputs and the result updates in your browser. Results are not saved, shared, or added to the URL.
Result
Adjust the fields to calculate a result.
How to use this tool
- Enter tank volume and choose stocking, nitrate trend, age, and access.
- Use the suggested volume as a starting point, then adjust from tests and animal behavior.
- Treat top-off and water changes as different tasks.
What the result means
The result is a maintenance starting point, not an emergency protocol.
Unsafe ammonia, nitrite, toxins, livestock distress, or illness need separate escalation.
Assumptions and limitations
The tank is cycled or being managed with appropriate fishless cycling or emergency guidance.
Replacement water is temperature-appropriate and treated for chlorine or chloramine when needed.