Reef tank cost planner
Price every piece of equipment, the electricity and your consumables to see your upfront, monthly and first-year cost.
Electricity running cost
Add each device with its wattage, hours and duty cycle, then apply your own tariff to see the annual bill.
Saltwater mixing & water changes
Work out the water and salt for each batch, and what your water-change routine costs over a year.
Net water volume
Find out how many litres your system really holds once rock, sand and the waterline are taken into account.
Reef light coverage
Plan how many fixtures you need, and where, from your coral zone, depth and the reef you want to keep.
Return pump head & flow
Read your pump’s published curve at your actual lift and pipework losses to see the flow you’ll really get.
Equipment fit & clearance
Check that equipment fits the cabinet or sump, with space left to service it.
Reef Companion
Keep your tank’s tasks, water tests, spending and cost plan together. Free, with no account.
Guides that pair with these tools
- How much does a reef tank cost to run each month?
- What reef salt really costs per litre
- A reef maintenance schedule you can stick to
- How to keep a useful water-test log
- How to work out your real water volume
- How to read a return-pump flow curve
- Equipment clearance checklist
HOW THE TOOLS WORK
See every input. Change every assumption.
Everything is in litres, pounds and pence per kilowatt-hour. Where an answer depends on things like heater cycling, rock displacement or a manufacturer’s pump curve, we tell you how much it could vary.