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Electricity running cost
Model multiple devices, quantities and duty cycles using your electricity tariff.
Reef setup budget
Build a realistic equipment and first-year consumables budget in pounds.
Tank volume & displacement
Estimate net water volume after rock, sand and operating level.
Return-pump head loss
Translate pump curves, vertical rise and fittings into a practical flow estimate.
Equipment compatibility builder
Check tank dimensions, cabinet space, plumbing and equipment dependencies.
CALCULATOR STANDARD
Inputs you can inspect. Assumptions you can change.
Calculators will use litres, pounds sterling and pence per kilowatt-hour by default. Where a result depends on cycling, displacement, efficiency or manufacturer curves, the uncertainty will be stated alongside the answer.