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Aquarium Salt & Salinity

Marine aquarium salt is essential in maintaining a marine or reef aquarium. We stock a large number of phosphate free salts for your reef or fish only system. 

To check the salt level we also stock hydrometers and refractometers.

Brand: CMC Stock: In Stock
10 Litre capacityScrew Top LidThis handy 10 Litre Aquarium Water Carrier is the perfect solution for your aquarium maintenance needs.Ideal for storing RO/Salt water or for use when you are performing a water change.Complete with a screw-top lid that holds water without leaking...
£7.19
Brand: Fluval Stock: In Stock
Fluval Sea Hydrometer provides an accurate and convenient method of measuring specific gravity and salt level in marine aquariums. Compact and easy to use, the hydrometer can be permanently installed inside the tank for continuous readings. Its slim, low-profile design camouflages well inside the ..
£7.74
Marine Pre-Mixed Salt Water 25 Litres
IN STORE EXCLUSIVE
Brand: CMC Stock: IN STORE EXCLUSIVE
Pre-mixed marine salt water available in store only.You will need to supply your own 25 Litre Water Carrier to be filled...
£5.00
RO Aquarium Water 25 Litres
IN STORE EXCLUSIVE
Brand: CMC Stock: IN STORE EXCLUSIVE
Aquarium RO water available in store only.You will need to supply your own 25 Litre Water Carrier to be filled...
£2.50
Tetra Marine Sea Salt - 20Kg Tetra Marine Sea Salt - 20Kg
Out Of Stock
Brand: Tetra Stock: Out Of Stock
Creates perfect seawater conditions for healthy marine fish and invertebrates Pack Size: 20Kg Tetra Marine SeaSalt has been produced with highest quality standards and long years of experience in research in order to guarantee ideal water conditions in marine aquariaunique, quickly dissolving..
£57.90
Tetra Marine Sea Salt - 4Kg Tetra Marine Sea Salt - 4Kg
Out Of Stock
Brand: Tetra Stock: Out Of Stock
Creates perfect water for marine fish and coralsReplicates natural seawater for healthy fish and coralsRich in calcium and magnesium for healthy corals, shrimp, and other invertebratesNo nitrates or phosphates, for cleaner waterA good quality salt is the key to success with marine aquariums.A high q..
£14.00
Tetra Marine Sea Salt - 8Kg Tetra Marine Sea Salt - 8Kg
Out Of Stock
Brand: Tetra Stock: Out Of Stock
Creates perfect seawater conditions for healthy marine fish and invertebrates Pack Size: 8Kg Tetra Marine SeaSalt has been produced with highest quality standards and long years of experience in research in order to guarantee ideal water conditions in marine aquariaunique, quickly dissolving ..
£27.00
Tetra Tec Comfort Hydrometer Tetra Tec Comfort Hydrometer
Out Of Stock
Brand: Tetra Stock: Out Of Stock
Marine fish and corals require stable water conditions, which makes regular checking of salinity important. It’s also necessary to check salinity when making up new water for water changes. The TetraTec Hydrometer makes it simple to accurately check the salt content of water, giving precise readings..
£11.83
Brand: CMC Stock: In Stock
25 Litre capacityScrew Top LidThis 25 Litre Aquarium Water Carrier is the perfect solution for your aquarium maintenance needs. Ideal for storing RO/Salt water or for use when you are performing a water change.Complete with a screw-top lid that holds water without leaking...
£10.85
Brand: D&D Stock: In Stock
SEAWATER Refractometer D-D announces the release of a true ‘Seawater’ calibrated refractometer. (Includes a small vial of Di water for zero calibration) What’s different between our NEW refractometer and others you might ask? Almost all, if not all, of the refractometers currently available t..
£39.99
TMC AquaHabitats Hydrometer
Out Of Stock
Brand: TMC Stock: Out Of Stock
Combined aquarium Hydrometer & Thermometer.Will give a salinity reading with an accuracy of 0.002.You just need to gently lower this hydrometer into your aquarium water, the hydrometer will need to float freely without being in contact with any surface and a reading can then be taken at the leve..
£4.39
Brand: Tropic Marin Stock: In Stock
Pure, pharmaceutical grade sea salt containing all trace elements found in natural seawater.From (osmosis-) water to seawater. Tropic Marin Sea Salt 4kg is made up of all of the macro elements and trace elements in a natural balance, contained within the ocean, and it is free from artificial additiv..
£21.92
Brand: Tropic Marin Stock: In Stock
The pharmaceutical grade sea salt especially for modern reef aquaria.Tropic Marin PRO-REEF Sea Salt has been designed to meet the special requirements of reef aquariums with optimized concentrations of calcium and magnesium, which promote the growth of corals. The lower buffering and the correct pH ..
£89.00
Tropic Marin Pro Reef Sea Salt - 4kg
Out Of Stock
Brand: Tropic Marin Stock: Out Of Stock
Pure, pharmaceutical grade sea salt containing all trace elements found in natural seawater.From (osmosis-) water to seawater. Tropic Marin Sea Salt 4kg is made up of all of the macro elements and trace elements in a natural balance, contained within the ocean, and it is free from artificial additiv..
£23.00
Brand: Tropic Marin Stock: In Stock
A great salt mix for the new Aquarist designed to create perfectly natural and balanced reef conditions in the home aquarium.Phosphate and nitrate free.Tropic Marin Reef-Salt creates the ideal environment for the care of fish, corals and other invertebrates in modern reef aquaria. Use saltwater prep..
£38.00
Brand: Tropic Marin Stock: In Stock
A great salt mix for the new Aquarist designed to create perfectly natural and balanced reef conditions in the home aquarium.Phosphate and nitrate free.Tropic Marin Reef-Salt creates the ideal environment for the care of fish, corals and other invertebrates in modern reef aquaria. Use saltwater prep..
£76.00
Tropic Marin Sea Salt - 1.24kg
Discontinued
Brand: Tropic Marin Stock: Discontinued
Pure, pharmaceutical grade sea salt containing all trace elements found in natural seawater.From (osmosis-) water to seawater. Tropic Marin Sea Salt 1.24kg is made up of all of the macro elements and trace elements in a natural balance, contained within the ocean, and it is free from artificial addi..
£4.49
Brand: Tropic Marin Stock: In Stock
Pure, pharmaceutical grade sea salt containing all trace elements found in natural seawater.From (osmosis-) water to seawater. Tropic Marin Sea Salt 2kg is made up of all of the macro elements and trace elements in a natural balance, contained within the ocean, and it is free from artificial additiv..
£15.17
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