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Best 20 gallon fish tank for sale
Table of content
Bestseller No. 1 
Tetra Aquatic Turtle Deluxe Kit 20 Gallons, aquarium With Filter And Heating Lamps, 30 IN (NV33230)
- COMPLETE aquarium KIT: 20-gallon tank is ideal for aquatic turtles, and this kit includes all the essentials needed for success, including a decorative filter with cartridges, basking platform, heating lamp, boxwood plant mat and screen top.
- INCLUDES WATER FILTER: Decorative ReptoFilter instantly creates a beautiful waterfall while keeping water clean with 3-stage filtration.
- HEATING: Dome lamps are incorporated into the screen top for warmth and prime basking.
- CONVENIENT: Includes Tetra food and water care product samples – everything you need to get started.
- DIMENSIONS: aquarium measures 30 inches wide x 12 inches deep x 12 inches tall.
- Age Range Description: All Life Stages
Bestseller No. 2
Aqueon Aquarium Starter Kit with LED Lighting 20 High
- Low profile full hood contains vibrant cool white LED lighting to bring your aquatic environment to life
- QuietFlow 10 LED PRO power filter has a red LED light that flashes to indicate when it’s time to change the cartridge – no more guessing!
- Preset heater will keep your aquarium temperature at a constant 78 degrees, appropriate for most tropical fish
- Complete setup guide included
- Complete aquarium kit includes: 20 gallon glass aquarium, low profile LED full hood, QuietFlow 10 LED PRO power filter with medium cartridge, 100W preset heater, premium fish food, water conditioner, fish net, stick-on thermometer
Bestseller No. 3
Aqueon Aquarium 20 Gallon Long
- High quality glass construction with dimensions 30.25" x 12.5" x 12.75"
- For freshwater and marine applications
- Clean silicone edges (select sizes available in clear or black)
- Always include a drip loop when plugging aquarium appliances into the electrical outlet
- Place aquarium on stand able to safely bear the weight of a filled aquarium
Bestseller No. 4
Tetra Aquarium 20 Gallon Fish Tank Kit, Includes LED Lighting and Decor
- Tetra Glass Aquariums are made in the USA and are built to last with scratch resistant glass
- The Tetra Aquarium comes loaded with an LED hood, that provides a natural daytime effect and a Whisper Filter that is whisper quiet while providing powerful, dependable water flow
- Artificial Plants add a unique, natural ocean feel while giving your fish a place to hide which reduces fish stress
- The Tetra Kit includes: one 20 Gallon Glass Aquarium, one LED hood, one Tetra Mini UL Heater, one Tetra Whisper 20 Filter, one artificial Boxwood Plant Mat, four artificial plants. Add gravel and fish to complete your aquarium
- Aquarium Dimensions: 24.2" L x 12.4" W x 16.7" H
Bestseller No. 5
Tetra ColorFusion Aquarium 20 Gallon Fish Tank Kit, Includes LED Lighting and Decor
- Let the LED light transform your aquarium with each color change. Pause the cycle on any color to fully customize your aquarium
- The anemones sway with your filter current and give your fish a place to hide and relax
- Tetra plants come to life under the glow of Color Fusion LED
- The Tetra ColorFusion Kit includes: one 20 Glass gallon Aquarium, one aquarium hood, one UL Heater, one Tetra Whisper 20 Filter, one Color Fusion Universal Color Changing LED, two Wonderland Plant Multipacks, one Blooming White Anemone
- Aquarium Dimensions:24.2" L x 12.4" W x 16.7" H
20 gallon fish tank stand
Bestseller No. 1
Imagitarium Newport Wooden Tank Stand - for 20 Gallon Aquariums, 24.75 in
- Clean modern design
- Fish tank stands assemble quickly with easy to follow instructions
- Adjustable protective nylon leveling feet
Bestseller No. 2
Flipper 10/20 Gallon Aquarium Stand, Rustic Oak
- Get an aquarium stand that fits your needs with the Flipper 10/20 Gallon Aquarium Stand
- Made of laminated MDF and particleboard, the medium brown woodgrain finish gives the Stand a classic look
- Unique patent design can support a 10 gallon stand on one end or a 20 gallon stand on the opposite end. Tank is not included
- Open and concealed storage can hold all of your nets, cleaning equipment, and food
- The Stand ships flat to your door and 2 adults are recommended to assemble. Stand can support 10 gallon tanks up to 120 lbs. or 20 gallon tanks up to 240 lbs. Assembled dimensions: 28.03”H x 25”W x 15.67”D
Bestseller No. 3
Aquatic Fundamentals Metal Aquarium Stand (20 Gallon- Black) 102201-AMA
- Stand Dimensions: 24. 3"L x 27. 8"H x 12. 5" W
- Powder Coated Modern Black Finish, Steel Construction, Moisture-Resistant
- Easy Assembly Required - Easy to follow instructions
- Tank Not Included Sold Separately
- Age range description: All Life Stages
Bestseller No. 4
Imagitarium Preferred Winston Tank Stand - for 29 Gallon Aquariums, 12.5 in
- Attractive way to showcase the beauty of your aquarium or terrarium
- Solid construction for added durability
- Adjustable shelf for convenient storage
- Rich espresso stain finish
- For tanks up to 29 gallons
Bestseller No. 5
Aquatic Fundamentals 20 Gallon Metal Scroll Aquarium Stand-Black
- Moisture-resistant aquarium furniture with powder coated finish
- Ready-to-assemble with everything you require included
- Classic Scroll design
- Stand Dimensions: 24. 3"L x 27. 8"H x 12. 5" W
- Tank not included
20 gallon fish tank heater
Bestseller No. 1
Mylivell Aquarium Heater Submersible Fish Tank Water Heater Thermostat-100W
- High Quality: Aquarium heater made of high quality quartz glass, double seal material , advanced design, ensures safe operation.
- Adjustable Temperature: The temperature of the fish tank heater can be adjusted automatically. Temperature setting range: 20°~34°C(65° F - 93° F), and the display is easy to read.
- Fully Submersible. Power: 100W. Suggested water volume: 20 gal.
- Both suiting for fresh or saltwater aquariums, provide a constant warm environment for your tropical fish to stay healthy.
- Convenient and Safe: Our aquarium heater thermostat has two suction cups for attachment to the fish tank. The polarized plug prevents electrical shock.
SaleBestseller No. 2
Marineland Precision Heater for Saltwater or Freshwater Aquariums, 75-Watt
- This 75 watt heater is for aquariums up to 20 gallons. Adjustable temperature dial allows you to set the temperature 1 degree with every click.
- Thermal Switch automatically turns off as temperature rises above an internal preset and turns back on once it cools down.
- The advanced heating element contains a mica core surrounded by a mesh heating element for superior heat transfer with enhanced durability
- Advanced mounting bracket securely attaches to glass and provides 3 window positions to view the temperature display
- Easy to view sliding scale tells the exact temperature setting. Top dial view shows the setting from an additional location.
Bestseller No. 3
Orlushy Submersible Aquarium Heater 100W for Marine Reef Fish Tank Sump
- ★100W aquarium heater is suitable for 15 to 30 gallons aquariums,Length - 9",voltage 110-120V, power cord is 6ft, please choose the right wattage aquarium heater according to our size chart.
- ★It shows an area to adjust the temperature. It's not exactly accurate but it turns easy and can be adjusted at small intervals.
- ★Explosion Proof: 2mm thickened quartz glass,can be used in fresh water and salt water aquariums,easy to hide in the tank.
- ★Precise temperature dial from 68 to 89°F allows for complete control of aquatic climate within a 1-degree difference.
- ★Adjustable Aquarium Fish Tank Water Heater Sensitive and reliable thermostat maintains uniform temperature. Automatic shut off when the temperature is reached
Bestseller No. 4
Orlushy Mini Aquarium Heater 100W,Small Fish Tank Heaters with LED Digital Temperature Display and...
- ★ 100W Submersible Aquarium Heater is Suitable for 10-20 Gallon.Temperature range: 65°F~93°F（18°C~34°C）, power cord is 5 FT.
- ★ LED Display Design: LED digital display, External temperature controller,easy to use and Safety.
- ★ The Digital Smart Aquarium Heater is a heater and thermometer combined into one, eliminating the need for more equipment in smaller tanks.
- ★ Please be sure that the heater needs to be completely sunk into water, horizontal or vertical fixed in the water cycle better place, and let the working light can be seen as clear as possible.
- ★ Applicable for freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems .
Bestseller No. 5
Orlushy 150W Submersible Aquarium Heater, Fish Tank Heater with Adjustable Temperature and 2 Suction...
- 【150 Watt Aquarium Heater】：150w aquarium heater is for 20-30 gallons fish tank, voltage 120V/60Hz, power cord 6(ft), heating rob length-9.5 inches.The temperature can be set to the values ranging from 68 to 93°F, please choose the right wattage aquarium heater according to our size chart
- 【Updated Design】: The aquarium heater is made of quartz glass, featuring corrosion-proof and explosion-proof. It adopts brand new structural design and helps increase dispersing heat area and shorten the length of the heating rob, thereby raising heating efficiency by 20%
- 【Intelligent Safety Protection】：When the indicator lamp is on, the heater starts to heat up the water. With automatic shut-off function and the thermostat inside, the heater maintains the tank water in stable and constant temp, automatically stop or start heating to keep the temp stability
- 【Wide Range of Application】： The heater is perfect for marine water or fresh water, suitable for aquaculture, hydroponic system
- 【Tips】： 1.Please disconnect the power supply, remove the heater out the water after cooling it down for 10 minutes before cleaning the aquarium or changing the water 2.Install the heater by attaching the suction cups to the tank side horizontally or vertically, and must be fully submerged
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20 gallon fish tank filter
Bestseller No. 1
Marineland Penguin Bio-Wheel Power Filter 150 GPH, Multi-Stage aquarium Filtration
- WITH ROTATING BIO-WHEEL: Patented Bio-Wheel technology provides excellent wet/dry biological filtration.
- MULTI-STAGE FILTRATION: Delivers mechanical, chemical and biological aquarium filtration to maintain a clean aquatic environment.
- COMPATIBILITY: Use with Marineland Rite-Size Filter Cartridges (see individual filter for sizing recommendations).
- FIVE SIZES: Available in 75 GPH, 100 GPH, 150 GPH, 200 GPH and 350 GPH sizes.
Bestseller No. 2
Tetra Whisper IQ Power Filter 20 Gallons, 130 GPH, with Stay Clean Technology
- QUIET aquarium FILTER: The Tetra Whisper IQ Power Filter with Stay Clean technology contains a sound shield for quiet filtration less than 40 dB.
- SELF PRIMING: Submerged motor starts up with no priming required.
- STAY CLEAN TECHNOLOGY: By maintaining healthy pH levels, creates easier maintenance for healthier fish.
- CARTRIDGE REFILLS: Change cartridges monthly; uses large-sized Tetra Whisper Bio-Bag Filter Cartridges (refills sold separately).
SaleBestseller No. 3
AquaClear, Fish Tank Filter, 5 to 20 Gallons, 110v, A595
- Aquarium filtration system that offers superior contact time with filter media and energy efficient pump lowers operating costs
- Quick and easy installation, we recommend that you clean aquarium filter every two weeks for maximum operation and efficiency
- Provides optimal mechanical, chemical, and biological filtrations
- Comes equipped with AquaClear Foam, Activated Carbon Filter and BioMax and Cycle Guard for superior water quality
- Filtration volume is up to 7 times larger than comparable fish tank filters
- Lifetime warranty; ideal for aquariums up to 20 gallons
Bestseller No. 4
Tetra Whisper Internal Filter 10 To 20 Gallons, For aquariums, In-Tank Filtration With Air Pump
- UNIVERSAL DESIGN Tetra Whisper 20i Internal Filter is an all-in-one air pump and water filter system
- INTERNAL FILTER Mounts on the inside of your aquarium with clip (included)
- CATCHES DEBRIS Dense dual-sided mesh filters debris and fish waste
- AERATES WATER Air-driven design filters up to 125 GPH while oxygenating water
- CONVENIENT DESIGN Uses large easy to change Bio-Bag cartridges filter mounts inside aquarium making it possible to place tank flush against the wall
Bestseller No. 5
MarineLand Penguin 100 Power Filter, 10-20 Gallon, 100 GPH (PF0100B),Black
- WITH ROTATING BIO-WHEEL: Patented Bio-Wheel technology provides excellent wet/dry biological filtration.
- MULTI-STAGE FILTRATION: Delivers mechanical, chemical and biological aquarium filtration to maintain a clean aquatic environment.
- COMPATIBILITY: Use with Marineland Rite-Size Filter Cartridges (see individual filter for sizing recommendations).
- FIVE SIZES: Available in 75 GPH, 100 GPH, 150 GPH, 200 GPH and 350 GPH sizes.
- Age Range Description: all ranges
- Included Components: Marineland Penguin 100 Power Filter (upto 20 gal)