Best Filter For 20 Gallon Long Aquarium - April 2024

Tetra Aquarium 20 Gallon Fish Tank Kit, Includes LED Lighting and Decor

The Tetra 20 Gallon Aquarium kit is just what you need to dive in to starting a new tank. The Tetra 20 Gallon Kit is perfect for the aquarist looking for a traditional aquarium with natural scenery or someone looking to break into this exciting hobby! A 20 gallon tank is an ideal size to comfortably contain multiple fish while not taking up too much space in your home. The team at Tetra has designed an aquarium kit which takes all the guesswork out of setting up an aquarium. Each of these kits includes a 20 Gallon Glass Aquarium, one LED hood, one Tetra 100 Watt heater, one Tetra Whisper 20 fi... [Read More]

• ASIN: B013BXDZ90
• UPC: 782560425553
• ASIN: B013BXDZ90
• Brand: Tetra
• Size: 20 gallon
• Manufacturer: United Pet Group

Tetra Whisper Assembled Bio-Bag Filter Cartridges for Aquariums

For 50 years, fishkeeping enthusiasts have looked to the Tetra name for products and solutions that add ease and beauty to their home. Whether you're an experienced hobbyist or just starting out, Tetra has everything you need–-from a large variety of quality fish food and innovative equipment to test kits and decor. Tetra Whisper Bio-Bag Replacement Cartridges are disposable filter cartridges that work to keep your water crystal clear while also removing odors and discoloration. These medium cartridges are easy to use and fit 20, 30, 40 and 60 Power Filters and 20i and 40i Internals. Each ca... [Read More]

• ASIN: B0006JM09O
• UPC: 046798261704
• ASIN: B0006JM09O
• Brand: Tetra
• Size: 3 count
• Manufacturer: Tetra

Marina Aquarium Kit - 20 gallon Fish Tank - LED

Ideal for the beginning aquarist, the Marina 20G LED Aquarium Kits comes equipped with everything needed to make the novice fish hobbyist's first venture into the wonderful world of fish-keeping an easy and enjoyable experience. This 20 gallon all glass aquarium features a long-lasting, natural daylight effect LED lighting module incorporated into aquarium canopy and includes everything you need to get started! This kit includes fish food to keep fish healthy, Aqua Plus Water Conditioner to make tap water safe for fish and Cycle Biological Supplement to create a biologically well-balanced and ... [Read More]

• ASIN: B0173I55Q0
• UPC: 015561152662
• ASIN: B0173I55Q0
• Brand: Marina
• Size: 20 gallon
• Manufacturer: Rolf C. Hagen (USA) Corp.

Fiji Cube Refugium Sump Baffle Kit (20 Gallon Long)

This DIY sump kit is designed to convert a 20 gallon glass aquarium tank into a fully functional sump It features integrated filter sock holders that can hold two 4" filter bags, filter sock silencers to lower noise caused by the water flow that goes into the filter socks, baffle slots that allow customization of spaces for protein skimmer, media reactor, refugium and other equipment, adjustable water level (4.5" to 8") to meet your protein skimmer water height requirement, 2 Media trays to hold bio-foams and/or media, Cast acrylic, Silicone ready. The kit includes: 1 x filter sock holders (ho... [Read More]

• ASIN: B07C2QZ54Q
• UPC: 761856629776
• ASIN: B07C2QZ54Q
• Brand: Fiji Cube
• Size: 20 Gallon Long
• Manufacturer: Fiji Cube

Aquaneat Aquarium Internal Filter 250GPH up to 20 gal Fish Tank Powerhead 3-in-1 Submersible Water Pump

FEATURES: Dual usage: works as a stand-alone power head or an internal filter. 3-in-1 power filter performs three functions at the same time: water filtration, water circulation and aeration. Changing and pumping water for your aquarium tank to create a healthy environment for your fish. Strainer to block debris from entering pump. Suction cup mounting feet for either vertical or horizontal mounting. Great for both freshwater and saltwater tanks. SPECIFICATION: Water Flow: 250GPH(950L/H) H-Max(lift height):1.8 ft Length of power cord: 4.5 ft Outlet: Fits 5/8" ID (inside diameter) tubin... [Read More]

• ASIN: B078MWDSC5
• ASIN: B078MWDSC5
• Brand: Aquaneat
• Size: 250 GPH
• Manufacturer: AQUANEAT

Tetra Deluxe Aquatic Turtle Kit, 20-Gallon, 30 x 12 x 12-Inches

Part of being a great pet owner is providing a thriving environment. Tetra Aquatic Turtle Deluxe Kit includes the essentials needed to get started with your new turtle. Also great for frogs and newts, this 20-gallon terrarium environment with filter and heating lamps incorporates a basking platform for your pet’s pleasure. Make this great tank a feature piece in your home. Along with a 20-gallon glass aquarium, your kit includes all of these essentials: Tetrafauna Decorative ReptoFilter with three cartridges, two 5.5-inch dome lamps with bulbs, Tetrafauna Turtle Terrace Basking Platform, a b... [Read More]

• ASIN: B075MKTGJM
• UPC: 047497332306
• ASIN: B075MKTGJM
• Brand: Tetra
• Manufacturer: Spectrum Brands Pet, LLC

Aqua Clear - Fish Tank Filter - 5 to 20 Gallons - 110v

• ASIN: B000260FVG
• UPC: 786714098938
• ASIN: B000260FVG
• Brand: Aqua Clear
• Manufacturer: Rolf C. Hagen (USA) Corp.

PENN PLAX (CPF3) Cascade Hang-on Aquarium Filter With Quad Filtration System Cleans Up to 35 Gallon Tank

The Penn Plax Cascade Hang On Aquarium Filter features a revolutionary Bio-Falls Quad Filtration System to keep your tank clean and healthy. The polyfiber floss cartridge traps floating particulate matter while the activated carbon cartridge removes harmful chemicals, toxins, odors, discoloration and other contaminants from the water. The internal sponge optimizes the colonization of beneficial anaerobic bacteria while removing ammonia and nitrites. The external Bio-Falls wet/dry biological booster provides anaerobic bacteria for additional ammonia and nitrite removal while enhancing oxygen ex... [Read More]

• ASIN: B0002DJ7ZY
• UPC: 030172015533
• ASIN: B0002DJ7ZY
• Brand: Penn Plax
• Size: Cascade 150
• Manufacturer: Monster Pets

Marineland Penguin 200, Power Filter, 30 to 50-Gallon, 200 GPH

• ASIN: B0009IODZG
• UPC: 047431503625
• ASIN: B0009IODZG
• Brand: MarineLand
• Size: 30 to 50-Gallon, 200 GPH
• Manufacturer: Marineland

Aqua-Tech EZ-Change No.2 3-Pack Aquarium Filter Cartridge for 10 to 20 Power Filters

AQUA-Tech EZ-Change Filter Cartridges are color-coded for fast and easy selection. These cartridges contain AQUA-Tech premium Activated Carbon for maximum filtration and require no messy assembly—simply change in seconds by shaking and rinsing. The EZ-Change #2 Filter Cartridge fits AQUA-Tech 10-20 Power Filters.

• ASIN: B002R8AATE
• UPC: 047431313231
• ASIN: B002R8AATE
• Brand: AquaTech
• Size: 3-Pack
• Manufacturer: Aqua-Tech

Tetra Whisper Air Pump, For 10 to 20 Gallon Aquariums

• ASIN: B0009YHU6Y
• UPC: 046798778479
• ASIN: B0009YHU6Y
• Brand: Tetra
• Size: 10 to 20-Gallons
• Manufacturer: Tetra

Penn Plax Airline Tubing for Aquariums -Clear and Flexible Resists Kinking, 25 Feet Standard

The Penn Plax Airline Tubing for Aquariums is the solution for all your aquarium airline needs.  It is designed and tested to be safe for salt and freshwater aquatic environments.  Standard size 3/16 inch diameter tubing comes in 2 sizes, 8 feet and 25 feet, so you can purchase airline tubing for any job, big or small. It is made from ultra clear, durable plastic that is not only very flexible, but virtually disappears when in water.  The Penn Plax Airline Tubing blends in with your aquatic scene so your aquarium ornaments and décor can stand out.  The non-toxic plastic tubing is safe for... [Read More]

• ASIN: B0002563MW
• UPC: 030172350252
• ASIN: B0002563MW
• Brand: Penn Plax
• Size: 25 Feet
• Manufacturer: Monster Pets

Bubblefin Aquarium Sump Refugium DIY Kit for Portein Skimmer Sump - Chamber dividers (20 Gallon Long)

This product includes 3 pieces of acrylic dividers for 20 gallon long fish tank. It does not come with fish tank. You will need to buy standard 20 gallon fish tank, and universal silicon glue from your local.

• ASIN: B07SL3G2CW
• UPC: 643845798628
• ASIN: B07SL3G2CW
• Brand: Bubblefin
• Size: 20 Galon
• Manufacturer: Bubblefin

Penn Plax 455 Cascade Corner Filter

Space saving corner design cascade internal filters are designed to provide better filtration and aeration above and below the surface. Fully submersible, these versatile filters provide physical, chemical and biological filtration. Each filter has an adjustable & directional water flow output and a spray bar option that will distribute water evenly to aid aeration. The round directional flow spout has a connector where you can connect to your flexible tubing to drive water fountains or other accessories. Mounts quicky using the included suction cups and can be placed horizontally making it ea... [Read More]

• ASIN: B00O218HFI
• UPC: 030172071935
• ASIN: B00O218HFI
• Brand: Penn Plax
• Size: Cascade Corner 455
• Manufacturer: Penn Plax

GRECH CBG-800 5W UV Sterilizer Hang-On Back Filter, 20-50 gallon/211 GPH

The Grech CBG-Series Hang-On Back UV Filter comes with a diverse and unique design. While being suitable for freshwater and saltwater aquariums, its style is a “Hang-On Back,” making it convenient for daily use. The filter is beautifully crafted to allow a simple installation and quiet operation. Water flow can be control accord to your aquarium needs. The CBG-Series has a biological and mechanical filtration and comes with active carbon and bio media. The CBG-Series also features a 5W UV Sterilizer which can be turned on and off. The UV Sterilizer helps in eliminating algae, keeping aquar... [Read More]

• ASIN: B01LY3YMHG
• ASIN: B01LY3YMHG
• Brand: GRECH
• Size: 20-50 gallon/211 GPH
• Manufacturer: Ming Trading LLC

Lees Original Undergravel Filter 20 Long x 10 Wide (10 Gallons) - Pack of 2

A trouble free biological filter designed with adjustable 1" dia. uplift tubes for better water circulation and multiple-plate construction for easy installation. Includes airline tubing and discard-A-Stone and features the fish-saver cleaning elbow. Advanced design

• UPC: 449340852

Lees Original Undergravel Filter 20 Long x 10 Wide (10 Gallons) - Pack of 3

A trouble free biological filter designed with adjustable 1" dia. uplift tubes for better water circulation and multiple-plate construction for easy installation. Includes airline tubing and discard-A-Stone and features the fish-saver cleaning elbow. Advanced design

• UPC: 467404294

Lees Original Undergravel Filter 30 Long x 10 Wide (20 Gallons) - Pack of 2

A trouble free biological filter designed with adjustable 1" dia. uplift tubes for better water circulation and multiple-plate construction for easy installation. Includes airline tubing and discard-A-Stone and features the fish-saver cleaning elbow. Advanced design

• UPC: 411871842

Lees Original Undergravel Filter 20 Long x 10 Wide (10 Gallons) - Pack of 4

A trouble free biological filter designed with adjustable 1" dia. uplift tubes for better water circulation and multiple-plate construction for easy installation. Includes airline tubing and discard-A-Stone and features the fish-saver cleaning elbow. Advanced design

• UPC: 659619523

Lees Original Undergravel Filter 30 Long x 10 Wide (20 Gallons) - Pack of 3

A trouble free biological filter designed with adjustable 1" dia. uplift tubes for better water circulation and multiple-plate construction for easy installation. Includes airline tubing and discard-A-Stone and features the fish-saver cleaning elbow. Advanced design

• UPC: 480968587

Lees Original Undergravel Filter 20 Long x 10 Wide (10 Gallons) - Pack of 6

A trouble free biological filter designed with adjustable 1" dia. uplift tubes for better water circulation and multiple-plate construction for easy installation. Includes airline tubing and discard-A-Stone and features the fish-saver cleaning elbow. Advanced design

• UPC: 651503784

Lees Original Undergravel Filter 30 Long x 10 Wide (20 Gallons) - Pack of 4

A trouble free biological filter designed with adjustable 1" dia. uplift tubes for better water circulation and multiple-plate construction for easy installation. Includes airline tubing and discard-A-Stone and features the fish-saver cleaning elbow. Advanced design

• UPC: 273058140

Lees Original Undergravel Filter 20 Long x 10 Wide (10 Gallons) - Pack of 10

A trouble free biological filter designed with adjustable 1" dia. uplift tubes for better water circulation and multiple-plate construction for easy installation. Includes airline tubing and discard-A-Stone and features the fish-saver cleaning elbow. Advanced design

• UPC: 616868469

Lees Original Undergravel Filter 30 Long x 10 Wide (20 Gallons) - Pack of 6

A trouble free biological filter designed with adjustable 1" dia. uplift tubes for better water circulation and multiple-plate construction for easy installation. Includes airline tubing and discard-A-Stone and features the fish-saver cleaning elbow. Advanced design

• UPC: 176066371

Lees Original Undergravel Filter 20 Long x 10 Wide (10 Gallons) - Pack of 12

A trouble free biological filter designed with adjustable 1" dia. uplift tubes for better water circulation and multiple-plate construction for easy installation. Includes airline tubing and discard-A-Stone and features the fish-saver cleaning elbow. Advanced design

• UPC: 319599242