Choose the water-change system
Buyer guide
Best reef salt for common UK setups
Compare current reef salts by stated chemistry, intended system, yield, price and the adjustment work left after a water change.
Decision guide
Reef salt versus marine salt
Understand what the label usually signals, then choose around livestock, target parameters and your dosing plan—not marketing language.
Cost guide
What does reef salt cost per litre?
Turn a bucket or box price into a comparable cost for the water you actually make each month.
Storage guide
How long can mixed reef saltwater be stored?
Compare manufacturer-specific storage limits, container conditions and the checks to repeat before use.
Maintenance
Reef water-change consumables checklist
Budget containers, pumps, measuring tools, calibration supplies and replacement items alongside the salt itself.
THE SALT RULE
Compare water made, not kilograms bought.
A larger box is not automatically cheaper. Divide the price by the manufacturer’s stated yield, then add delivery, storage, mixing time and any adjustment or dosing that your chosen chemistry requires.