Aquarium Tools & Calculators
Plan lighting, dosing, CO2, volume, soil and heater sizing with practical tools for freshwater aquariums.
Aquarium Planner
Plan your complete aquarium setup
Use aquarium size, equipment, plants, fish, algae insights and calculators together in one guided plan.
Calculators answer one specific number.
The Aquarium Planner prepares a setup recommendation.
My Aquarium Hub manages your saved aquarium over time.
Choose the planner or calculator for your next aquarium decision.
Fast planning aids for light, nutrients, CO2, volume, substrate and temperature.
Guided setup
Aquarium Planner
Build a beginner-safe aquarium setup in a few minutes.
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Light planning
Aquarium Lighting Calculator
Calculate PAR, lux and photoperiod for planted aquariums and aquascapes.
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Dosing planner
Chart output
Aquarium Fertilizer Dosing Calculator
Calculate nutrient additions and visualize dosing over time for planted aquariums.
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Setup sizing
Aquarium Volume Calculator
Estimate aquarium volume based on dimensions, shape and water height.
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Water chemistry
Aquarium pH/CO2 Calculator
Estimate CO2 levels from pH and KH values for freshwater aquariums.
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Substrate planning
Aquarium Soil Calculator
Estimate how much aquarium soil you need based on aquarium size and substrate depth.
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Temperature planning
Aquarium Heater Size Calculator
Estimate heater wattage based on aquarium volume and temperature difference.
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Planning aid
How to use these tools
The calculators are designed as planning aids. Always observe your aquarium and adjust slowly when changing light, CO2, nutrients or temperature.
- 01 Choose your aquarium goal
- 02 Enter your measurements
- 03 Apply the result carefully