Salt Water (Pick Up Only)
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Ready-Mixed Saltwater for Marine & Reef Aquariums
Take the hassle out of preparing saltwater with our Ready-Mixed Marine Saltwater, produced in-store at Rock ’N’ Critters in Barry.
We combine our purified RO water with Instant Ocean marine salt to produce saltwater mixed to approximately 35 ppt salinity, ideal for routine marine aquarium water changes and filling new systems.
No measuring salt, no mixing equipment and no waiting for a fresh batch to dissolve – simply collect the quantity you need.
Prepared In-Store Using Instant Ocean Salt
Our saltwater is prepared using:
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Purified RO water – providing a clean starting point for saltwater preparation
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Instant Ocean marine salt – a trusted marine salt formulation
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Dedicated saltwater storage – kept separate from our other aquarium systems to help minimise contamination risks
The result is convenient, ready-mixed saltwater for marine aquarium maintenance.
Ideal for Water Changes
Regular water changes are an important part of maintaining a marine aquarium, helping replenish seawater constituents and dilute accumulated waste products.
Our pre-mixed saltwater is ideal for:
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Routine marine and reef aquarium water changes
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Filling new marine aquariums
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Preparing additional saltwater for maintenance
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Hobbyists without their own RO system or salt-mixing equipment
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Customers who prefer the convenience of collecting prepared saltwater
Mixed to Marine Aquarium Salinity
Our saltwater is prepared to approximately 35 ppt (parts per thousand), a commonly used salinity target for marine and reef aquariums.
Always check the salinity and temperature of replacement water against your aquarium before use, particularly when carrying out larger water changes.
Available in 10L & 25L
Choose the quantity that suits your aquarium:
10 litres – Convenient for nano reefs, smaller aquariums and regular water changes.
25 litres – Ideal for larger water changes and customers requiring greater quantities.
We can also supply water for initial marine aquarium fills. Contact us to discuss larger requirements.
Collection Only – Barry, South Wales
Our ready-mixed saltwater is available for collection only from Rock ’N’ Critters in Barry. Order online and collect your prepared saltwater directly from our store.
Why Choose Rock ’N’ Critters Ready-Mixed Saltwater?
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Prepared in-store using Instant Ocean marine salt
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Made with purified RO water
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Mixed to approximately 35 ppt salinity
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Stored in a dedicated, isolated saltwater vat
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Convenient for regular water changes
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Suitable for new marine aquarium fills
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Available in 10L and 25L quantities
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No home salt-mixing equipment required
If you have any questions about our salt water, or changing the salt water in your tank, don't hesitate to give us a call. Our experts are happy to help you - 01446 737210.
