Plan an aquarium from measurements, not guesses
Twelve calculators, a maintenance schedule and a journal for multiple tanks. No registration and no server upload of your results.
Most-used tools
Start with net volume, then plan a water change, filtration and equipment cost.
Aquarium volume calculator
Calculate gross and estimated net water volume for a rectangular or cylindrical aquarium.
Water change calculator
Calculate the exact water change volume and an optional conditioner dose.
Aquarium substrate calculator
Estimate substrate volume and weight for the aquarium footprint.
Aquarium filter flow calculator
Estimate required real and nominal aquarium filter flow.
Aquarium heater wattage calculator
Estimate a starting heater wattage from water volume and temperature difference.
Aquarium electricity cost calculator
Calculate monthly and yearly energy use for heaters, filters, lighting and other equipment.
A journal you can move
Save tanks, measurements and tasks in localStorage. Download a complete JSON backup and import it later on this or another device.
Open the journal