Skip to content
Submit
Close search
FREE SHIPPING ON DRY GOODS ORDERS OVER £49.99 TO MAINLAND UK
INSTALLATIONS & MAINTENANCE
expand
AQUARIUM MAINTENANCE
CUSTOM INSTALLATIONS
SHOP
expand
ALL PRODUCTS
EQUIPMENT
Calcium Reactors & ph controllers
Dosing pumps & automated testing/dosing
Reactors, ozonisers & filtration equipment
UV Sterilisers
Cooling
Heating
Protein skimmers
Pumps (internal flow)
Lighting
MAINTENANCE
Coral dips, treatments & medications
Bacteria cultures & organic carbon sources
Balling salts
Glues, putty & adhesives
Sand & substrates
Rock
Filter medias
Aquarium salts
RO (Reverse osmosis)
Testing & measuring
LIVESTOCK & FOOD
Algae
Coral Foods
Fish foods & vitamins
ADDITIVES
Brightwell Aquatics
Triton
Continuum
Red sea
AQUARIUMS
Aquariums
Aquarium Accessories
BRANDS
ATI
CONTINUUM
BRIGHTWELL AQUATICS
BUBBLE MAGUS
NEPTUNE SYSTEMS
TECO
RED SEA
REEF FACTORY
TROPICAL MARINE CENTER
TUNZE
VITALIS
MORE BRANDS
USEFUL LINKS
CONTACT & OPENING
Search
Log in
Cart
0
items
INSTALLATIONS & MAINTENANCE
INSTALLATIONS & MAINTENANCE Menu
INSTALLATIONS & MAINTENANCE
AQUARIUM MAINTENANCE
CUSTOM INSTALLATIONS
SHOP
SHOP Menu
SHOP
ALL PRODUCTS
EQUIPMENT
EQUIPMENT Menu
EQUIPMENT
Calcium Reactors & ph controllers
Dosing pumps & automated testing/dosing
Reactors, ozonisers & filtration equipment
UV Sterilisers
Cooling
Heating
Protein skimmers
Pumps (internal flow)
Lighting
MAINTENANCE
MAINTENANCE Menu
MAINTENANCE
Coral dips, treatments & medications
Bacteria cultures & organic carbon sources
Balling salts
Glues, putty & adhesives
Sand & substrates
Rock
Filter medias
Aquarium salts
RO (Reverse osmosis)
Testing & measuring
LIVESTOCK & FOOD
LIVESTOCK & FOOD Menu
LIVESTOCK & FOOD
Algae
Coral Foods
Fish foods & vitamins
ADDITIVES
ADDITIVES Menu
ADDITIVES
Brightwell Aquatics
Triton
Continuum
Red sea
AQUARIUMS
AQUARIUMS Menu
AQUARIUMS
Aquariums
Aquarium Accessories
BRANDS
BRANDS Menu
BRANDS
ATI
CONTINUUM
BRIGHTWELL AQUATICS
BUBBLE MAGUS
NEPTUNE SYSTEMS
TECO
RED SEA
REEF FACTORY
TROPICAL MARINE CENTER
TUNZE
VITALIS
MORE BRANDS
USEFUL LINKS
CONTACT & OPENING
SHOP BY CATEGORY:
Clearance Corner
Filter by
All products
Additives
Aquarium Accessories
Continuum
Fish Foods & Vitamins
reactors
Reactors Ozonisers Filtration
Reef Factory
Roller mat filters
Sort by
Featured
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old
17 products
Magnesium (MG) - 1000 ml (expired 09/2025)
Magnesium (MG) - 1000 ml (expired 09/2025)
Regular price
£9.49
Sale price
£9.49
Regular price
£18.99
Unit price
/
per
Sale
Sold out
Previous page
Page 3 of 3
Next page
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
Choosing a selection results in a full page refresh.
Press the space key then arrow keys to make a selection.
