10 Best Small Fish Tank Setup

Updated on: June 2021

Best Small Fish Tank Setup in 2021


Koller Products AquaView 2-Gallon 360 Fish Tank with Power Filter and LED Lighting - AQ360-24C

Koller Products AquaView 2-Gallon 360 Fish Tank with Power Filter and LED Lighting - AQ360-24C
BESTSELLER NO. 1 in 2021

Koller Products AquaView 3 Gallon 360 with Power Filter & LED Lighting

Koller Products AquaView 3 Gallon 360 with Power Filter & LED Lighting
BESTSELLER NO. 2 in 2021
  • Energy-efficient LED lighting with 7 dazzling color choices to brightly illuminate your fish; choose daylight White, Blue, green, amber, aqua, Purple, or Red. Include built-in timer, Set your LED light to come on at the same time everyday, timer enables you to select light settings of 2 hours, 4 hours or continuous on easily with a flick of your finger.
  • Powerful internal power filter cleans and purifies Aquarium water at a flow rate of 25 gallons per hour as the Tetra Whisper XS Filter cartridge effectively removes organic pollutants (including colors, odors, heavy metals, and toxic gases).
  • Made of impact-resistant plastic with crystal-clear clarity so good that most think it's made of glass plus one-piece construction providing superior strength and durability, Unlike glass tanks glued together with silicone, this trendy shaped Tank puts to rest any worries or concerns about possible leaks.
  • Easy to set up and maintain, this trendy fish Tank will look good wherever you place it. Takes 3 AAA batteries (not included); Optional Koller Products 5V power adapter (aq51000) enables light to be plugged into electrical outlet, (Available online). Dimensions: 10.2" Dia x 14.5"H.
  • 100% Satisfaction Guarantee. Dedicated to serving our customers. Need help or a replacement part, please contact us at customercare@kollerproducts.com for fast, friendly service.

Koller Products AquaView 6 Gallon 360 Fish Tank with Power Filter & LED Lighting

Koller Products AquaView 6 Gallon 360 Fish Tank with Power Filter & LED Lighting
BESTSELLER NO. 3 in 2021
  • Are you looking to buy an aquarium for your children? If you are, you are going to want to look at this fish Tank. Owning an aquarium can be a really fun and rewarding experience and an ideal way to teach your child the responsibility of pet ownership
  • Energy-efficient LED lighting with 7 dazzling color selections to brightly illuminate your fish, choose daylight White, Blue, green, amber, aqua, Purple, or Red
  • Powerful internal power filter cleans and purifies Aquarium water at a flow rate of 45 gallons per hour effectively removing organic pollutants including discoloration, odors, heavy metals, and toxic gases. Uses Tetra Whisper small replacement filter cartridges
  • Made of impact-resistant plastic with crystal-clear clarity so good that most think it's made of glass; all the while providing leak-proof assurance, unlike glass tanks glued together with silicone, this one-piece Tank puts to rest any worries or concerns about possible leaks. Dimensions: 11 Dia x 19.8 H inches
  • 100% satisfaction guaranteed. If you need a part or help, please contact us at customercare@kollerproducts.com for fast, friendly service

Tetra Waterfall Globe Kit 1.8 Gallons, Aquarium With Filtration

Tetra Waterfall Globe Kit 1.8 Gallons, Aquarium With Filtration
BESTSELLER NO. 4 in 2021
  • DESKTOP AQUARIUM KIT: 1.8 gallon tank is ideal for betta or goldfish, or small tropical fish like guppies and tetras (with the addition of the Tetra HT10 heater).
  • A NEW TAKE ON THE CLASSIC “FISHBOWL”: All-in-one tank is a great option for first-time fishkeepers.
  • BUILT-IN FILTER: Cartridge-based filtration system.
  • UNIQUE WATERFALL FEATURE: Filtration system doubles as a beautiful waterfall feature for your tank while it circulates and cleans water.
  • INCLUDES LIGHTING: With the flip of a switch, low voltage LED lights illuminate your pets!
  • Pump driven power filter
  • Unique waterfall feature
  • cartridge based filtration
  • On/off button for light
  • Pump driven power filter

Aqueon 100527256 Fish Tank Aquarium LED Kit, 10 Gallon

Aqueon 100527256 Fish Tank Aquarium LED Kit, 10 Gallon
BESTSELLER NO. 5 in 2021
  • 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: 10 gallon glass aquarium, low profile LED full hood, QuietFlow 10 LED PRO power filter with medium cartridge, 50W preset heater, premium fish food, water conditioner, fish net, stick-on thermometer

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

Tetra ColorFusion Aquarium 20 Gallon Fish Tank Kit, Includes LED Lighting and Decor
BESTSELLER NO. 6 in 2021
  • 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

Penn Plax Betta Fish Tank Aquarium Kit with LED Light & Internal Filter Desktop Size, 1.5 Gallon

Penn Plax Betta Fish Tank Aquarium Kit with LED Light & Internal Filter Desktop Size, 1.5 Gallon
BESTSELLER NO. 7 in 2021
  • Everything you need is in this betta Fish Tank kit, 1.5 gallon tank, LED light, and internal filter. Easy to set up, you’ll be ready to add your fish in minutes.
  • Fish tank hold 1.5 Gallons of water with a curved design and raised base. Made of clear, quality plastic with a removable lid for easy feeding and cleaning.
  • Internal filter uses a 3 stage system that utilizes biological, mechanical, and chemical filtration. Carbon Filter media removes nitrate and other pollutants.
  • Tank Comes with a low voltage Ultra bright white LED light for maximum viewing with an on/off switch. A standard outlet is used to power filter and light.
  • This small aquarium measures 9.5 inches high by 8.5 inches wide by 6 inches deep and can be used for a betta or any other small tropical fish. It’s the perfect size for any desk top or table.

Penn Plax Cascade 20 Power Filter – Mini Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups

Penn Plax Cascade 20 Power Filter – Mini Hang-On Filter with Quad Filtration – Great for Freshwater and Saltwater Setups
BESTSELLER NO. 8 in 2021
  • QUIET & EFFICIENT: The Cascade 20 Mini Power Hang-On Filter quietly delivers crystal clear water throughout the aquarium. This filter pushes water at 20 Gallons per Hour (GPH) for tanks up to 7 Gallons in size. It’s great for Freshwater and Saltwater aquariums.
  • ACCOMMODATING: The adjustable flow knob allows for increased or decreased water flow at will, which is extremely helpful during feeding times, or use it as needed. The hang-on design is constructed for safe mounting. With a provided extension piece, the lift tube measures between 5” (min) and 6 1/2” (max).
  • EXTREMELY BENEFICIAL: This Cascade filter utilizes disposable, double-sided media cartridges that contain Activated Carbon and Poly Fiber Floss. The included cartridge traps floating particulate matter, removes harmful chemicals and toxins, clears up discolorations, and reduces foul odors from your aquarium’s water.
  • OVERALL MEASUREMENTS: 4. 5” (H) x 3. 75” (W) x 3” (D)
  • SHOP PENN-PLAX FOR ALL YOUR PET’S NEEDS: Penn-Plax is a manufacturer and distributor of top quality pet supplies, who specialize in creating excellent pet products for animals, both great and small.

Fluval Spec III Aquarium Kit, 2.6-Gallon, Black (10515A1)

Fluval Spec III Aquarium Kit, 2.6-Gallon, Black (10515A1)
BESTSELLER NO. 9 in 2021
  • 2.6 gallon Nano aquarium and powerful 3-stage oversized mechanical, chemical and biological filtration.
  • Etched-glass tank with aluminum trim
  • Powerful 31 LED lighting system
  • Includes foam block, activated carbon and BioMax bio rings
  • Size: 11.8 x 10.8 x 8.7 inch

Tetra Bubbling LED aquarium Kit 1 Gallon, Hexagon Shape, With Color-Changing Light Disc (29040-00)

Tetra Bubbling LED aquarium Kit 1 Gallon, Hexagon Shape, With Color-Changing Light Disc (29040-00)
BESTSELLER NO. 10 in 2021
  • aquarium KIT Hexagon-shaped aquarium kit is perfect for betta fish
  • COLORFUL Bubbling disc automatically cycles through a rainbow of LED light colors
  • INCLUDES FILTER Includes air pump-driven Tetra Whisper Internal Power Filter to keep your tank clean and provide a healthy environment for pet fish
  • AIR PUMP Drives both the bubbling disc and the filter
  • CONVENIENT Clear canopy has a hole for easy feeding
  • Age Range Description: All Life Stages

How to Seed a New Fish Tank with Beneficial Bacteria

There are three main ways to start a new fish tank and get it ready for the introduction of fish. One, you set up the tank and just add the fish. Two, you do fishless cycling using liquid ammonia and time.

Seed a New Fish Tank - Materials Needed

In order to seed a new fish tank with beneficial bacteria from an established home aquarium, you will need some of the stuff that has been in the old aquarium for a long time already. This can be filter media, gravel from the bottom of the tank, rocks, or decorations. The highest concentration of beneficial bacteria happens in the gravel or substrate, and the filter media.

If you plan on removing the gravel, media, or decoration after its purpose is served, you will also need something to hold it. A leg of nylon stocking works well for gravel. For larger items, you can use a net or even plastic netting that onions come in from the market. Wash everything very well in tank water before using.

Seed a New Fish Tank - Getting Started

To begin seeding a new fish tank with beneficial bacteria, set up the new tank exactly how you want it for the new fish. Attach the filter, lights, heater, and anything else and get them running. Do not add fish yet.

Remove the bacteria laden item or items from the old fish tank. Do not wash them or rinse them with tap water. The chemicals in tap water can kill the beneficial bacteria. If you will be putting them permanently in the new fish tank, simply arrange them as you like. Old gravel can be put directly on top of the new gravel, or dug in slightly.

If you will be removing the old fish tank items, put them in the stockings, nets, or other holders and drop or suspend them in the new fish tank. Keep them there while you cycle the tank. Remember that these bacterium need ammonia and nitrites to survive.

Seed a New Fish Tank - Why and How

Why should you seed a new fish tank with beneficial bacteria anyway? The answer is one that all good aquarium owners should always consider: the health of your fish. Fish excrete ammonia, a poisonous substance that can build up in a fish tank and kill off the inhabitants. Beneficial bacteria in a fish tank work to transform the ammonia into compounds that are more usable, especially to live plants. The bacteria is part of a successful fish tank ecosystem.

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