Best Saltwater Tanks Aquarium Filters in 2026

2 LAYERS EQUALS CLEAR WATER: This unique 2 Layers in 1 filter media pad combines a typical aquarium filter pad with a water polishing pad. The top layer’s open fiber construction traps LARGER PARTICLES while the bottom layer's dense fiber network TRAPS FINER PARTICLES, working together to produce clean, clear water in your aquarium.

SEE THE DIFFERENCE: When you clean this aquarium fiber pad, see how much more debris it traps compared to other aquarium media pads. Your fish, turtles, and all aquatic pets will be happier and healthier.

CUT TO FIT: FilterFirst filter media aquarium pads can easily be cut to fit your filter. Our unique poly filter pad is PERFECT FOR FRESHWATER, REEF TANKS OR SALTWATER aquariums. Ideal filter pads for aquarium wet dry filters, and will also work in your sump, canister filter media, aquaponic system, and more. They’re also perfect as a turtle tank filter!

CLEAN - CLEAR - WATER THE EASY WAY. INCLUDES 3 HUGE blue and white bonded sheets for a long supply

FITS HUNDRES OF FILTERS FOR FRESHWATER, SALTWATER AND PONDS. Easily cut the sheets to fit your desired size

INTANK PREMIUM THICKNESS | Other brands try and copy with classifying incorrect thinner pads. Each sheet is about 10" x 20" x 1-1.5" (thickness measured dry before packing and varies by batch) inTank Pads are classified as 2 INCH

Quality Aquarium Filter Pads - Great for most aquarium and fish tank filter. The poly filter pads help keep the marine environment clean and balanced for both fresh water and salt water tanks.

Color Changing Technology - The poly filter pad changes color as it begins to catch pollutants, indicating what is in the water and when the reef tank filter pads needs to be replaced.

Cleaner Water for Longer - Since the Poly Filter removes both chemical toxins and organic waste, the water stays clear without needing changed as often. Using poly bio filter pads help keep your tank pristine.

Perfect for Use-Sponge filter provides filtration, works great and for longer life.

Soft Sponge Material-Unique cylindrical shape 6 vertical stripe sponge design, traps floating debris and won't suck up your fish.

How to Use-Using an air hose, connect one end to you air pump and the other end to this filter, and equipped with a check valve on air hose to avoid water back-flow and air pump damage due to power outage. It is a great way to clean your fish tanks.

Removes odors, discoloration, and impurities to keep water crystal clear.

Phosphate free. Safe for both fresh and saltwater tanks.

Fast working and long lasting. Popular pellet carbon 4mm diameter.

Filter Compatibility: Compatible with Fluval Series Canister Filters 06, 07, FX, and more.

Water Clarification: ClearMax is a premium-grade resin chemical filter media that absorbs phosphate, nitrite, and nitrate. The filter media makes aquarium maintenance easier and reduces odors.

Ideal Environment: ClearMax helps create crystal clear water, making ideal conditions for fish and plants in your tank.

Fine Bubbles: The air stone produces lots of dense fine bubbles; A great way to oxygenate your hydroponic growing systems, ponds, aquariums and enliven the aquatic life

Size: 4" x 2" x 2"; Recommended air pump power: 4 - 8 W; Standard ID airline tubing: 0.16" / 4 mm

Durable Material: Made of mineral material and sintered at a high temperature; The material is sturdy and durable which is safe to your fish

Over 30 years of proven customer satisfaction with our green filter product.

No chemicals used in production! Safe for all fresh or saltwater fish, tanks & ponds.

Easy to cut with scissors to any size needed.

SIMPLE and VERSATILE - Perfect for fresh & saltwater wet/dry filtration systems, ponds, and freshwater or saltwater canisters.

SAFE - Safe for all fish (both fresh or saltwater),  Reptiles in both aquarium tanks and ponds.

MADE IN THE USA - Our dual-sided Pinky Floss aquarium filters are made in the USA and give you two filters in one.

2 LAYERS EQUALS CLEAR WATER: This unique 2 Layers in 1 filter media pad combines a typical aquarium filter pad with a water polishing pad. The top layer’s open fiber construction traps LARGER PARTICLES while the bottom layer's dense fiber network TRAPS FINER PARTICLES, working together to produce clean, clear water in your aquarium.

SEE THE DIFFERENCE: When you clean this aquarium fiber pad, see how much more debris it traps compared to other aquarium media pads. Your fish, turtles, and all aquatic pets will be happier and healthier.

CUT TO FIT: FilterFirst filter media aquarium pads can easily be cut to fit your filter. Our unique poly filter pad is PERFECT FOR FRESHWATER, REEF TANKS OR SALTWATER aquariums. Ideal filter pads for aquarium wet dry filters, and will also work in your sump, canister filter media, aquaponic system, and more. They’re also perfect as a turtle tank filter!

9 total 106/206, 107/207 Nitrite Remover media

Effective at removing and reducing nitrite in fish tanks

Supports beneficial bacteria for a healthier aquatic environment

Experience crystal clear water, radiantly healthy freshwater or saltwater fish, and whisper-quiet, high flow filtration without constant cartridge replacements or a hazardous impeller

Quiet and easy to clean - simply rinse and squeeze in used tank water (not tap water!) to maintain nitrogen-fixing bacteria. Inner canister of filter can be filled with activated charcoal, carbon, or other media.

Hooks up directly to a powerhead or pump, and the diffuser can replace air stones. To set up, simply assemble, bury the base, and connect an air hose.

CASCADE 1000 CANISTER FILTER: Without effort, the Cascade 1000 Canister Filter quietly delivers crystal clear water throughout the tank. This filter cycles water at 265 Gallons per Hour, and is recommended for aquariums up to 100 gallons. It’s compatible for both freshwater and saltwater fish tanks, and is also great for turtle habitats!

STATE OF THE ART FEATURES: In addition to the push button primer that allows for a simple and quick prime, this Canister Filter also features two independent valve taps that rotate 360°. This makes for easy maneuvering, even in the tightest aquarium cabinets! The 3 stackable, large capacity media baskets give aquarists the ability to customize filtration.

FILTER MEDIA: This Canister Filter comes standard with 3 Poly Fiber Floss Pads, 1 Coarse Bio-Sponge, and 1 Bag of Activated Carbon. In addition to optimizing the colonization of anaerobic bacteria, this filter traps floating particulate matter, removes harmful chemicals and toxins, clears up discolorations, and reduces foul odors from your aquarium’s water.

UNIVERSAL FILTER MEDIA BAG – Optimal for Activated Carbon (Carbon Sold Separately)! Aquarium mesh filter media bag is ideal for small filter media, such as our Aquatic Experts Classic Activated Carbon. Works with pelletized carbon, GFO, zeolite, peat, crushed coral, barley pellets, ammonia, nitrate, phosphate, and silicate removers and other types of granulated filter media. Will not work for very fine resins such as Purigen and CupriSorb, for these use our Extra Fine Mesh Media Drawstring Bags.

SAVE MONEY - Our 8 pack of 500 micron fine-flow mesh media bags fit perfectly in a variety of filters including canister filters, power filters, sumps, wet/dry filters and pond filters for your tanks. Just fill our economical bag with your favorite filter media. You will receive eight 3 inch by 8 inch mesh bags.

DURABLE AND REUSABLE - These unique mesh filter bags are easy to fill and empty with top drawstring design to keep filter media secure. Our bags are durable, washable, and can be reused.

Premium quality dual-density aquarium and pond filter roll pad. The filter pad measures 12 inches wide by 72 inches long and is 3/4 inch thick. Save money by quickly and easily cutting this dual-density filtration media material to any size you need. There is no need to purchase the overpriced ready-made, pre-cut filter media material.

Thick filter pad that is constructed with durable polyester fibers that are bonded together for extra strength. The dual-layer filter has an open fiber top layer that traps larger particles while the bottom layer's dense, interlocking fiber traps fine particles, so the dual-density layers work together to ensure your aquarium water stays crystal clear.

This dual-density filter's superior filtration instantly improves the water quality by trapping smaller organic matter, uneaten food, excreted waste, decaying plants, and other debris. The filter pad is ideal for freshwater and saltwater aquariums as a prefilter for wet or dry filters, sumps systems, and canister filters. Still, it is also excellent for aquaponics systems, koi ponds, reefs, terrariums, etc.

Size: 7.5" x 4.7" x 2.75",The material has great thickness, it is durable.

Sponge filter provide both mechanical and biological filtration,Trap large bits of waste,And will not get clogged easily.

Can be cut to fit your filters.Used for any aquarium or pond filter.

HIGH FLOW AQUARIUM FILTER MEDIA BAG: this 3x8" mesh filter bag fit for most kinds of filter media, like Pelletized Carbon, Bio Balls, Ceramic Rings, BUT NOT for fine filter media.Suitable for freshwater and saltwater tanks,power filters.

BAG DIMENSION: 8cm * 21cm/ 3"*8", suitable for high flow filters,NOT for fine filter media,not for purigen.If you want fine filter bag,please search"SLSON 5 Pcs Media Filter Bag Aquarium Fine 180 Micron Mesh Filter Bags" in our store.

UNIVERSAL AND CUSTOMIZABLE: ideal for use in any canister filter, hanging filters, sumps, and pond filtration systems,perfect for granular activated carbon, peat fiber, pellets, resins and any type of biological or chemical filtration.But not for PURIGEN.

Removes odors, discoloration, and impurities to keep water crystal clear.

Phosphate free. Safe for both fresh and saltwater tanks.

Fast working and long lasting.

Biological filtration media that helps remove ammonia in the water

Good to use for both fresh and saltwater aquariums

The ceramic bio rings filter media are extremely porous.

REPLACEMENT CARBON INSERTS: This aquarium filter media is a replacement for filter pads in your Aquatop FORZA Series canister filter.

KEEP CRYSTAL CLEAR WATER: These tank filters are great for your filtration system and will help keep your aquarium water crystal-clear.

FITS AQUARIUM CANISTER FILTERS: These fish tank filter pads are pre-cut to fit Aquatop’s aquarium filter FZ9 UV for both fresh and saltwater tanks.

Ready to use bags, convenient use for all types of filters.

Suitable for both freshwater and saltwater filters.

Flter bio-balls excellent for oxygenating your water and helping the gas exchange process.

Versatile Underwater Filtration: Whether you’re looking for a submersible filter that offers multi-stage cleaning, quiet operation, versatile horizontal and vertical mounting options or ultra-fast media changes, U series has something to offer everyone.

Filter Levels: Easy-grip water control panel and redesigned media cartridge allows U1 filter to trap more debris. U2, U3, and U4 filters have additional chemical and biological filters to remove odors, improve water clarity, and balance water chemistry.

Easy Replacement: Convenient flip-top lid allows for quick and easy access to the filter cartridge for maintenance or replacement.

【Package Includes】: 9 pieces of fish filter cartridges, makes for AQUA-Teach 20-40 & 30-60 power filters (EZ-Change#3) & Marineland Penguin PRO Power Filters 275/375 & Original Penguin Power Filters 200 350 - Rite-Size C.

【Full filtration】The filter cartridge has dense filter cotton, which can adsorb all kinds of debris and fish excrement, and the grid design of the fish tank filter cartridge makes full contact between the activated carbon and water to achieve maximum deodorization and water purification, thus giving your lovely pet a fresh and comfortable living environment, and also saving you the time of manually cleaning the fish tank.

【Ready to use】Our filter cartridge is already set up, it just needs to be installed correctly on the power filter and it is ready for quick filtration. If there is carbon on the filter cotton, please clean it before use.

This product is suitable for seawater, fresh water, water tanks, size can be cut freely. On the biochemical cotton waste and feed residue, improve water quality filter clean. Cleaned once a month, no blocking, no deformation, can be reused after cleaning. On the cotton waste and feed residue, improve water quality filter clean.

Our premium bulk roll is aquatic pet safe and are made without dyes.Premium Filter Pad Provides Proven Superior Mechanical Filtration. Thoroughly Tested on Thousands of Aquariums Our Premium Filter Pads quickly became the top choice for filtration media.

The filter pads are typically used as a pre-filter for wet/dry filters, sumps, and canister filters to clean water in freshwater, saltwater, reef aquariums and other types of fish tanks. They also provide mechanical filtration in aquaponics systems, turtle tanks, terrariums, and much more.

Clarify your water naturally and promote gas exchange and increase dissolved oxygen levels

Our Bio balls are 100% polypropylene making them a safe reliable bio filter media for fresh and saltwater. They are manufactured for use in koi and water garden ponds, freshwater fish tanks, saltwater aquariums, aquaponics, fish hatcheries and much more

Ready to use filter bag. Convenient for use with your canister filter, power filter, or fish pond filter. The mesh bag is zipper designed and reusable. Size of media mesh bag: 19.3x13 inch

Removes odors, discoloration, and impurities to keep water crystal clear.

Phosphate free. Safe for both fresh and saltwater tanks.

Fast working and long lasting.

3D Honeycomb Design Excellent Mechanical Filtering: 3D Woven Filter Socks, Using 3D Textile Technology and Honeycomb Sandwich Structure, Subversive Upgrade of Filter bag Industry

Aquariums Filter Sock Hives are Designed to Divert Water, Mimic The way Bees Build Their Nests, Contrasted with the past Aquarium Felt Filter Bags，are Permeable, Non-Clogging, and Flexible Enough to be Flipped Over for Easy Cleaning

The 150 Micron Filter Socks Provide Excellent Mechanical Filtration by Capturing Debris to Help Reduce The Amount of Ammonia-Producing Organic Matter in Aquariums, While Also Helping to Prevent Damage to Aquarium Equipment by Large and Small Objects Such as Sand and Coral.

🐳【NEW 3rd AMERICAN TECHNOLOGY】- It is the first choice for sponge filter pad. Equipped with 8-layer filtration, the Sunjojo aquarium sponge foam are smarter than normal: 2 layer's honeycomb woven mesh;2 layer's three-dimensional fiber; 2 layer's fine mesh fiber; 1 layer Nano bio sponge filter and 1 layer Fiber bio sponge filter. They working together to help keep your aquarium crystal clear. Size: 15.7x11.8x0.79in, 1 Pack.

🐠【HIGH QUALITY & DURABLE】- Our fish tank filter pad is constructed of durable polyester fibers, the unique honeycomb construction provide STRENGTH and EASY TO CLEAN. Laboratory tests show the filter media can resist warping, breaking and tearing. You're worth it!

🐙【EASY TO USE】- Our aquarium filter media allows you to cut to fit any size filtration. Pads can be used in hang-on-back filters, canister filters, wet or dry filters, sumps, and pond filters. Perfect for freshwater tank, sea water tank, reef aquariums, fish tanks, shrimp tanks, aquaponics systems, turtle tanks, terrariums, water plants cylinder, and much more.

Large size 19.6"x19.6"x0.79" filter pads are available to be cut to fit your filter for any aquarium or pond filter.Use the volume calculation formula to compare the sizes of other brands Thatis:19.68(L)x19.68(W)*0.79(H)=306 the bigger the parameterthe bigger the sponge. Hope to help you get the best value for money.

Sponge filters provide mechanical and biological filtration, trap large amounts of waste, and do not clog easily. The size of the pores is measured by the number of pores in the unit area (PPI), the higher the PPI, the more pores in the sponge. It is recommended to use a combination of different size sponges for the best effect.

Dye-free and safe for aquatic pets. Filter pads are usually used as pre-filters for wet/dry filters, catch basins, and tank filters.

Best Quality The aquarium filter sponge is made with the finest material that's specially tested to be aquatic pets safe and without dyes and weird smells. The thickness of three layer aquarium sponges makes it durable and suitable for your axolotl tank, cherry shrimp tank, and turtle tank!

Three Wishes Granted The 3IN1 filter sponges come with layers of different sizes of open pores filter pads. Large, Minor, and Fine open cell foam sheet. Maximizing the filtration capacity and provide the purifying ability of mechanical, biological, and chemical filter media.

Improve Water Quality The triple layers of bio filter pads can easily filter out all unwanted particles, such as food and other residues. And make the minor residues the nutrient source for growing the filtering organism by working the mechanical and biological filtration simultaneously on the second layer. Reduce the toxic ammonia and nitrite to make the biochemical cycle.