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Additives

We stock a wide range of aquarium additives from trace elements to coral additives and foods including amino acids which aid in coral growth.

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Seachem Reef Phytoplankton 250ml

Original price £0.00 - Original price £0.00
Original price £0.00
£10.95
£10.95 - £10.95
Current price £10.95

Reef Phytoplankton™ is a concentrated blend of green and brown marine phytoplankton designed to provide the essential fatty acids, proteins, vitami...

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Original price £0.00 - Original price £0.00
Original price £0.00
£10.95
£10.95 - £10.95
Current price £10.95

Nyos Byotic 75g

Original price £0.00 - Original price £0.00
Original price £0.00
£39.99
£39.99 - £39.99
Current price £39.99

BYOTICprobiotic bacteria Even in well-established tanks, corals sometimes die for unknown reasons. We have identified an imbalance in the bacterial...

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Original price £0.00 - Original price £0.00
Original price £0.00
£39.99
£39.99 - £39.99
Current price £39.99

Modern Reef BioActivator Biological Stimulator 100ml

Original price £0.00 - Original price £0.00
Original price £0.00
£24.99
£24.99 - £24.99
Current price £24.99

Modern Reef BioActivator Biological Stimulator 100ml BIOactivator is an all-in-one biological stimulant based on enzymes and bacteria food to promo...

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Original price £0.00 - Original price £0.00
Original price £0.00
£24.99
£24.99 - £24.99
Current price £24.99

Modern Reef BioBac Bacterial Blend 250ml

Original price £0.00 - Original price £0.00
Original price £0.00
£30.99
£30.99 - £30.99
Current price £30.99

Modern Reef BioBac Bacterial Blend 250ml BIOBac is a full-spectrum synthetic bacterial blend that includes probiotic, nitrifying, and purple bacter...

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Original price £0.00 - Original price £0.00
Original price £0.00
£30.99
£30.99 - £30.99
Current price £30.99

Reef Factory Minerals - Barium (Ba) 150ml - EXPIRY 11/25

Original price £13.99
Original price £13.99 - Original price £13.99
Original price £13.99
Current price £5.99
£5.99 - £5.99
Current price £5.99

Please Note: This item has an expiry date of 11/2025 and has been reduced to clear. The chemical composition of Barium Reef Minerals was devel...

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Original price £13.99
Original price £13.99 - Original price £13.99
Original price £13.99
Current price £5.99
£5.99 - £5.99
Current price £5.99
Sale Sale

Seachem Reef Carbonate 250ml

Original price £0.00 - Original price £0.00
Original price £0.00
£8.99
£8.99 - £8.99
Current price £8.99

Seachem Reef Carbonate 250ml Seachem Reef Carbonate Raises carbonate alkalinity (KH)Concentrated (4,000 meq/L)Made with a blend of carbonate and bi...

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Original price £0.00 - Original price £0.00
Original price £0.00
£8.99
£8.99 - £8.99
Current price £8.99

Seachem Garlic guard 500ml

Original price £0.00 - Original price £0.00
Original price £0.00
£13.99
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Current price £13.99

GarlicGuard™ is an all natural garlic scented odor and flavor enhancer for freshwater and saltwater fish. Our research has shown that many fish are...

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Original price £0.00 - Original price £0.00
Original price £0.00
£13.99
£13.99 - £13.99
Current price £13.99

Tropic Marin All for Reef 250ml

Original price £0.00 - Original price £0.00
Original price £0.00
£13.95
£13.95 - £13.95
Current price £13.95

Tropic Marin® ALL-FOR-REEF is an easy- to-use, highly concentrated solution for the supply of ALL essential minerals and trace elements in new or m...

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Original price £0.00 - Original price £0.00
Original price £0.00
£13.95
£13.95 - £13.95
Current price £13.95

Tropic Marin Elimi-NP 250ml

Original price £0.00 - Original price £0.00
Original price £0.00
£21.99
£21.99 - £21.99
Current price £21.99

Liquid carbon dosing concentrate for nutrient reduction for advanced reef aquarists The nutrient conditions for the lower animals in the reef aqua...

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Original price £0.00
£21.99
£21.99 - £21.99
Current price £21.99

Red Sea Trace Colours A Iodine+

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£23.99
£23.99 - £23.99
Current price £23.99

Red Sea Trace Colors A contains an Iodine and Halogen complex to help promote the pink colors in corals.1 mL will raise the iodine level of 25 gall...

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Original price £0.00 - Original price £0.00
Original price £0.00
£23.99
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Current price £23.99

Red Sea Trace Colours 4 Pack (100ml A,B,C,D)

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£26.99
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Current price £26.99

TRACE COLORS A | B | C | D supplements contain the 31 minor and trace elements present in the skeleton and soft tissue of all corals. The elements ...

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Original price £0.00 - Original price £0.00
Original price £0.00
£26.99
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Current price £26.99

Red Sea Foundation Supplements Complete Pack (Foundation ABC) 250ml x3

Original price £0.00 - Original price £0.00
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£33.99
£33.99 - £33.99
Current price £33.99

Red Sea’s Foundation™ Supplements Complete Pack contains all of the essential foundation elements required in order for corals to thrive within the...

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Original price £0.00 - Original price £0.00
Original price £0.00
£33.99
£33.99 - £33.99
Current price £33.99

Nyos Chromys 250ml

Original price £0.00 - Original price £0.00
Original price £0.00
£18.99
£18.99 - £18.99
Current price £18.99

With NYOS® CHROMYS you get a liquid zoological plankton concentrate which can be used directly. CHROMYS contains high-quality Mysis relicta (0.2-20...

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Original price £0.00 - Original price £0.00
Original price £0.00
£18.99
£18.99 - £18.99
Current price £18.99

Seachem Reef Advantage Calcium 250g

Original price £14.95
Original price £14.95 - Original price £14.95
Original price £14.95
Current price £7.95
£7.95 - £7.95
Current price £7.95

Reef Advantage Calcium™ is a non-caustic (pH 8.3–8.6) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in ...

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Original price £14.95
Original price £14.95 - Original price £14.95
Original price £14.95
Current price £7.95
£7.95 - £7.95
Current price £7.95
Sale Sale

Seachem Multitest Copper 75 tests

Original price £0.00 - Original price £0.00
Original price £0.00
£12.99
£12.99 - £12.99
Current price £12.99

This kit measures all types of copper to less than 0.01 mg/L in marine or freshwater. It uses a highly sensitive catalysis based procedure. MultiTe...

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Original price £0.00
£12.99
£12.99 - £12.99
Current price £12.99

SeaChem Prime 250ml

Original price £0.00 - Original price £0.00
Original price £0.00
£11.99
£11.99 - £11.99
Current price £11.99

Prime® is the complete and concentrated conditioner for both fresh and salt water.Prime® removes chlorine, chloramine and ammonia.Prime® converts a...

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Original price £0.00 - Original price £0.00
Original price £0.00
£11.99
£11.99 - £11.99
Current price £11.99

Reeflowers Magnesium Blend 500ml

Original price £0.00 - Original price £0.00
Original price £0.00
£11.00
£11.00 - £11.00
Current price £11.00

Reeflowers Magnesium Blend is high-density ionic magnesium solution that assists in the structural development of corals oysters and similar aquari...

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Original price £0.00 - Original price £0.00
Original price £0.00
£11.00
£11.00 - £11.00
Current price £11.00

Reeflowers Magnesium Blend 250ml

Original price £0.00 - Original price £0.00
Original price £0.00
£7.50
£7.50 - £7.50
Current price £7.50

Reeflowers Magnesium Blend is high-density ionic magnesium solution that assists in the structural development of corals oysters and similar aquari...

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Original price £0.00 - Original price £0.00
Original price £0.00
£7.50
£7.50 - £7.50
Current price £7.50

Nyos lon-B Ca/Mg+ Liquid 5000ml

Original price £0.00 - Original price £0.00
Original price £0.00
£34.99
£34.99 - £34.99
Current price £34.99

Increases calcium and magnesiumThe Nyos® ION-B system provides you with a perfectly coordinated, state-of-the-art supply system for modern saltwate...

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Original price £0.00 - Original price £0.00
Original price £0.00
£34.99
£34.99 - £34.99
Current price £34.99

Nyos Amyno 500ml

Original price £0.00 - Original price £0.00
Original price £0.00
£29.99
£29.99 - £29.99
Current price £29.99

AMYNONyos AMYNO is an all-in-one organic solution for corals that has been developed over a long period of time with leading coral farms. It contai...

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Original price £0.00 - Original price £0.00
Original price £0.00
£29.99
£29.99 - £29.99
Current price £29.99

Seachem Reef Fusion 1 500ml

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Original price £0.00
£10.59
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Current price £10.59

Seachem Reef Fusion 1 500ml Reef Fusion 1 and Reef Fusion 2 are the foundation of a system formulated to provide the essentials for the reef aquari...

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Original price £0.00 - Original price £0.00
Original price £0.00
£10.59
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Current price £10.59

Seachem Stability 100ml Bottle

Original price £0.00 - Original price £0.00
Original price £0.00
£11.99
£11.99 - £11.99
Current price £11.99

Seachem Stability 250ml Bottle Seachem Stability is formulated specifically for use in aquariums, containing a blend of highly beneficial bacteria ...

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Original price £0.00 - Original price £0.00
Original price £0.00
£11.99
£11.99 - £11.99
Current price £11.99

Tropic Marin Re-Mineral Marine 250g

Original price £0.00 - Original price £0.00
Original price £0.00
£12.19
£12.19 - £12.19
Current price £12.19

Tropic Marin Re-Mineral Marine 250g for hardening reverse osmosis water with valuable mineralsrestores minerals to the water, which are lost durin...

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Original price £0.00 - Original price £0.00
Original price £0.00
£12.19
£12.19 - £12.19
Current price £12.19

Continuum Basis KH Liquid Buffer 250ml

Original price £0.00 - Original price £0.00
Original price £0.00
£9.99
£9.99 - £9.99
Current price £9.99

Continuum Basis KH Liquid Buffer 250mlProfessional alkalinity boosting pH & KH control system for all marine fish & reef aquaria.The Contin...

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Original price £0.00 - Original price £0.00
Original price £0.00
£9.99
£9.99 - £9.99
Current price £9.99