Free Shipping!
Start Earning 5% on Future Purchases SEE DETAILS ›

Narrow Your Results:

Categories
Special
Brand
Aquarium Size (gallons)
Minimum Aquarium Size
Care Level
Temperament
Lighting
Color Form
Diet
Family
Genus
Max. Size
Origin
Species
Swim Level
Tank Setup
Water Conditions
Sale Items

Reef Filter

552 products
Seachem Tidal Power Filter
(4556)
Starting at $54
*Large-capacity power filter for freshwater or marine aquarium use*Powerful, feature-loaded filter achieves high aquarium water quality*Highly customizable filter accommodates any Seachem filter mediaAll-in-one hang-on power filter boasts industry-leading media capacity and fully adjustable flow…
Cobalt Aquatics Complete Reef Filter Media
(LiveAquaria® Approved)
Starting at $19.91
…negatively impact calcium, magnesium or alkalinityCobalt Aquatics Complete Reef Filter Media provides superior pollutant and nitrate removal -- specially formulated for the needs of marine aquariums.Cobalt Aquatics' Complete Reef combines Ultra Carbon granules, Total Organics and Total Nitrate high…
Cobalt Aquatics Total Reef Filter Media
(LiveAquaria® Approved)
Starting at $49.91
*Excellent all-in-one filter media for nano reefs, SPS tanks, and other sensitive saltwater systems*Removes organics, nitrate, phosphate and heavy metals*Rechargeable resin blend for multiple usesCobalt Aquatics' Total Reef combines the unmatched pollutant removing power of Total Organics and Total…
Reef BioFuel
(4413)
Starting at $15.15
…for use in heavily-stocked, well-fed reef aquariums or to help expedite biological filtration in new aquarium setups.Use daily in conjunction with testing until optimal water parameters are reached. Reef BioFuel rapidly improves water quality, supports filter feeders and encourages polyp-expansion…
Sera Filter Wool
(4363)
Starting at $2.99
…filtration. Filter floss is suitable for freshwater and saltwater filters, including canister filters and wet/dry sump filters.Directions For Use It is essential that the filter wool is thoroughly rinsed under warm tap water before initial use.General Information Sera Filter Wool for mechanical…
API® ACTIVATED FILTER CARBON
(5443)
Starting at $11.49
…ACTIVATED FILTER CARBON when setting up a new aquarium or in established aquariums to improve water clarity, remove dissolved organic waste, colors, odors or medications.Place in filter inside media basket or in a filter media bag for convenient use. For freshwater, saltwater, and reef aquariums.…
Marineland® Filter Sleeve for Magnum 350 Canister Filter
(5526)
Starting at $9.99
…Marineland® brand foam filter sleeves for Magnum 350 Canister Filter. Bonded filter material effectively traps unsightly particles to achieve clearer aquarium water. Rinse or replace foam filter sleeve monthly to ensure optimal performance of your aquarium canister filter. Rite-Size V. Benefits…
Marineland® Foam Filter Sleeve for H.O.T. Magnum Canister Filter 250
(5520)
Starting at $5.99
…brand foam filter sleeves for H.O.T. Magnum Canister Filter 250. Bonded filter material effectively traps unsightly particles to achieve clearer aquarium water. Rinse or replace foam filter sleeve monthly to ensure optimal performance of your hang on tank aquarium canister filter. Rite-Size U.…
Magnavore Poly-Tech Super Filter Pads
(5506)
Starting at $4.99
…Capacity Filter Pad to help maintain aquarium water quality of extreme purity, clarity and low toxicity while minimizing impact on trace elements. Cut Super Capacity Professional Filter Pad to custom fit sump style aquarium filters, canister filters or power filters. Ideal for reef, marine, planted…
AquaFX Add-On Deionization (DI) Filter
(5027)
Starting at $49.99
…life for simple visual confirmation of filter performance.AquaFX Add-On Deionization (DI) Filter is perfect for aquarium applications requiring pure water free of contaminants and dissolved solids. Use pure RO/DI water to mix synthetic salts for marine reef aquariums housing corals, anemones or…
Sera Siporax Bio Filter Medium
(4298)
Starting at $22.49
…of the filterSera Siporax is a biological filter material for all internal, external and trickle filter systems, and for garden pond filters. 1 liter of Sera Siporax provides as much settling area for bacteria as approximately 34 liters of ceramic filter material. Therefore, 1 liter of Sera Siporax…
Fluval G Series Premium Filter
(4837)
Starting at $249.99
…mechanical and chemical filter cartridges are independently accessible thanks to their cutting edge top-load cartridge design. High-capacity pleated mechanical filter cartridge traps significantly more suspended debris than conventional mechanical filter foam. Reusable chemical filter cartridge can…
AquaticLife Twist-In Sediment Filter Cartridge
(5716)
Starting at $7.99
Filter Cartridge installs directly on to your AquaticLife Twist-In RO or RO/DI unit in only seconds with just a quarter turn and without contact with used filter material. Best of all, the supply water to the unit does not have to be turned off to replace cartridge!STAGE 1 - Twist-In Sediment Filter
AlgaGen PhycoPure Reef Blend
(Assorted species)
Starting at $10.99
…a blend of LIVE microalgae specifically assembled for use as a supplement for marine reef aquarium filter feeders and to sustain copepod populations. Aquarists have reported great results feeding PhycoPure Reef Blend to clams, species-specific corals (gorgonians, brain corals, mushroom corals,…
EcoSystem Reef Solution
(5737)
Starting at $16.99
…For both reef and fish-only marine aquariums. Use Reef Solution daily for optimal results. Use 1 capful for 50 gallons of aquarium water. Directions for Use: Must shake well before use.Use 1 capful for 50 gallons of aquarium water. Add Reef Solution directly into water. Maintain normal filter
DFS24