AQUARIUM UNDER-GRAVEL FILTERS
At Joe's Aquatic World we offer a wide selection of undergravel filters for marine aquariums.
Our range of undergravel filters are an excellent way of keeping the water in your marine aquarium crystal clear and healthy.
Undergravel filtration works by drawing water through the gravel in your tank that possesses purifying bacteria colonies, which subsequently works as a mechanical trap for the bacteria to purify any harmful nitrites.
Browse our selection of undergravel filters for marine aquariums below.
Our Departments
-
AQUARIUM FILTERS & PARTS
- AQUARIUM INTERNAL FILTERS
- AQUARIUM EXTERNAL FILTERS
-
EXTERNAL FILTER MEDIA
- AQUAONE EXTERNAL FILTER MEDIA
- EHEIM EXTERNAL FILTER MEDIA
- FLUVAL EXTERNAL FILTER MEDIA
- SEACHEM FILTER MEDIA AND ACCESSORIES
- SUPERFISH EXTERNAL FILTER MEDIA
-
INTERNAL FILTER MEDIA AND SPARES
- AQUARIUM INTERNAL FILTER SPARES
-
AQUARIUM INTERNAL FILTER MEDIA
- AQUAONE AQUARIUM FILTER MEDIA
- AQUAEL INTERNAL FILTER MEDIA
- BIORB FILTER MEDIA
- FLUVAL INTERNAL FILTER MEDIA
- EHEIM INTERNAL FILTER MEDIA
- INTERPET FILTER MEDIA
- JUWEL AQUARIUM FILTER MEDIA
- MARINA AND ELITE FILTER MEDIA
- RENA INTERNAL FILTER MEDIA
- SUPERFISH INTERNAL FILTER MEDIA
- TETRA INTERNAL FILTER MEDIA
- AQUARIUM FILTER MEDIA
-
AQUARIUM PRODUCTS
- AQUARIUM AIR PUMPS AND ACCESSORIES
- AQUARIUM KITS AND STANDS
- AQUARIUM SPARES AND ACCESSORIES
- AUTOFEEDERS AND VACATION FOOD BLOCKS
- AQUARIUM BACKGROUNDS
- AQUARIUM BREEDING EQUIPMENT
- AQUARIUM CLEANING AND MAINTANCE
-
AQUARIUM DECOR (PLANTS, ORNAMENTS, WOOD & ROCKS)
- BIORB DECOR
- NATURAL WOOD DECOR
- AQUARIUM DECORATIVE ORNAMENTS
- DISNEY THEMED ORNAMENTS
- FINDING NEMO ORNAMENTS
- FLUVAL DECOR
- HUGO AQUARIUM ARTIFICIAL PLANTS
- LAVA ROCK, SLATE, ROCK, PEBBLES AND SHELLS
- PLASTIC AND SILK PLANTS
- SCOOBY DOO ORNAMENTS
- SPONGE BOB ORNAMENTS
- TEENAGE MUTANT NINJA TURTLES ORNAMENTS
- AQUARIUM DISEASE TREATMENTS
- AQUARIUM FEEDING AIDS AND INDUCERS
- POWERHEAD PUMPS, SPARES AND ACCESSORIES
- TROPICAL AND COLDWATER FISH FOODS
- AQUARIUM GLUES AND ADHESIVES
- HEATERS, CHILLERS & THERMOMETERS
- AQUARIUM LIGHTING EQUIPMENT
- PLANTED AQUARIUM EQUIPMENT
- REPLACEMENT SUCKERS
- REVERSE OSMOSIS EQUIPMENT
- SENEYE
- AQUARIUM SANDS & GRAVELS
- TANK DIVIDERS & GRAVEL TIDYS
- AQUARIUM TEST KITS
- TURTLE & TERRAPIN FOOD
- UNDER TANK CUSHION PADS
-
AQUARIUM WATER CONDITIONERS AND ADDITIVES
- AQUARIUM ALGAE & GREEN WATER TREATMENTS
- AMMONIA & NITRITE REMOVERS AND DETOXIFIERS
- BIOLOGICAL TANK CLEANERS
- CICHLID & DISCUS TANK ADDITIVES
- AQUARIUM FILTER BACTERIA STARTERS & SUPPLEMENTS
- OXYGENATING TABLETS
- AQUARIUM PHOSPHATE REMOVERS
- AQUARIUM PH ADJUSTERS & STABILISERS
- ADDITIVES FOR R.O. WATER
- AQUARIUM TAP WATER TREATMENTS
- AQUARIUM SALT
- AQUARIUM WATER POLISHERS & CLARIFIERS
- WATER PUMPS AND CIRCULATION PUMPS
- SEACHEM TREATMENTS
- TAP AQUARIUM TREATMENTS
-
MARINE PRODUCTS
- MARINE TANK BACKGROUNDS
- MARINE CLEANING AND MAINTENANCE EQUIPMENT
- MARINE AQUARIUM DECOR
- MARINE DISEASE TREATMENTS
- MARINE FEEDING AIDS AND FEED INDUCERS
- MARINE FILTRATION EQUIPMENT
- MARINE FISH FOOD AND CORAL FOOD
- MARINE GLUES AND ADHESIVES
- MARINE HEATING, COOLERS AND THERMOMETERS
- MARINE LIGHTING EQUIPMENT
- MARINE AND REEF SUPPLIMENTS
- MARINE POWER HEAD PUMPS AND SPARES
- MARINE SALT
- MARINE REPLACEMENT SUCKERS
- SENEYE WATER MONITOR AND ACCESSORIES
- MARINE SUBSTRATES
- MARINE TANK DIVIDERS & FISH TRAPS
- MARINE TEST KITS
- MARINE REVERSE OSMOSIS EQUIPMENT
- MARINE U.V STERILISERS
- MARINE WATER CONDITIONERS AND ADDITIVES
- MARINE WATER PUMPS AND CIRCULATION PUMPS
- UNDER TANK CUSHION PADS
-
GARDEN POND PRODUCTS
- POND FILTERATION
- POND PUMPS, SPARES AND ACCESSORIES
- POND AIR PUMPS AND ACCESSORIES
- PLANTING EQUIPMENT
- ELECTRICAL EQUIPMENT
- FISH DISEASE TREATMENTS
- POND FISH CATCHING NETS
- GLUES AND ADHESIVES
- HERON AND PREDATOR DETERRANTS
- FISH FOODS
- PIPE AND FITTINGS
- POND COVER NETS
- POND HEATERS AND THERMOMETERS
- POND LIGHTING
- POND LINERS AND UNDERLAY
- POND SKIMMERS
- POND U.V. CLARIFIERS UNITS, TUBES AND SPARES
-
POND WATER CONDITIONERS AND ADDITIVES
- POND GREEN WATER TREATMENT
- POND AMMONIA, NITRITE REMOVERS AND DETOXIFIERS
- POND BLANKET WEED TREATMENTS
- CLAY ADDITIVES
- DUCK WEED TREATMENT
- POND SURFACE FOAM REMOVERS
- POND FILTER BACTERIAL TREATMENT
- POND pH, kH and GH ADJUSTERS AND STABILISERS
- POND PHOSPHATE REMOVERS
- POND SALTS
- SLUDGE REMOVERS AND BIOLOGICAL POND CLEANERS
- POND TAP WATER TREATMENTS
- POND WATER CLARIFIERS AND POLISHERS
- WATER FEATURES, POOLS AND STATUES
- POND TEST KITS
-
LOTUS POND PRODUCTS
- LOTUS POND PUMPS
-
LOTUS SPARES BY FILTER
-
GREENGENIE SPARES & MEDIA
- GREENGENIE 2000 SPARES & MEDIA
- GREENGENIE 2500 SPARES & MEDIA
- GREENGENIE 3000 SPARES & MEDIA
- GREENGENIE 3500 SPARES & MEDIA
- GREENGENIE 6000 SPARES & MEDIA
- GREENGENIE 6500 SPARES & MEDIA
- GREENGENIE 12,000 SPARES & MEDIA
- GREENGENIE 12,500 SPARES & MEDIA
- GREENGENIE 18,000 SPARES & MEDIA
- GREENGENIE 24,000 SPARES & MEDIA
- GREENGENIE 30,000 SPARES & MEDIA
- GREENGENIE 48,000 SPARES & MEDIA
- GREEN 2 CLEAN SPARES & MEDIA
- CLEAR POND SPARES & MEDIA
-
GREENGENIE SPARES & MEDIA
- LOTUS UV PRODUCTS
- KOCKNEY KOI TREATMENTS
- POND ACCESSORIES
- TAP POND TREATMENTS
- SPECIAL OFFERS
- NEW PRODUCTS
- CLEARANCE
- Fluval External Filters
- Oase Pontec Pond Equipment
- BiOrb Aquariums and Equipment
- Oase Aquamax Range
- Evolution Aqua Nexus Filters
- Evolution Aqua Eazy Pod Filter
- NT Labs Aquarium and Pond
Shop By
Shopping Options
- Price
- -
- Manufacturer
- Algarde (1)
My Basket
You have no items in your shopping cart.
Compare Products
You have no items to compare.
Special Offers
-
Was:£12.99
NOW:£8.49
-
Hikari Hi-Growth Large Pellet 2kg
Was:£45.99
NOW:£39.99
-
Seachem Reef Status Magnesium, Carbonate & Borate Test Kit
Was:£34.99
NOW:£32.49
-
Eheim Pro 4+ 600 External Aquarium Filter 2275
Was:£264.99
NOW:£194.95
-
Eheim Pro 4+ 350 External Aquarium Filter 2273
Was:£223.00
NOW:£157.95
Security Tested
