10 Best 20 Gallon Aquarium of December 2025

• INCLUDES ALL THE ESSENTIALS FOR SUCCESS: This GloFish aquarium kit includes a 20 gallon glass aquarium, LED hood, Tetra mini UL heater, Tetra Whisper 20 filter, GloFish 13" LED light stick, 1 GloFish yellow anemone, 2 plant multipacks, fish food and water conditioner sample as well as a set-up guide.
• BLUE LED LIGHTING TRANSFORMS YOUR AQUARIUM: The blue LED light completely transforms your aquarium. GloFish and GloFish d?cor fluoresce, creating a colorful, neon display.
• COMPLETE THE LOOK WITH COLORFUL ADDITIONS: Complete the look by adding pops of color among any gravel you choose with the varying plant sizes and colors included.
• DIMENSIONS: The 20 Gallon Aquarium dimensions are 24.2" L x 12.5" W x 16.2" H

GloFish

• The perfect starter aquarium or terrarium for a wide variety of fish and reptiles

Generic

• 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

Imagitarium

• 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

Flipper

• 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

Tetra

• 20 U.S. gallon glass aquarium
• Includes a Marina Slim S20 clip on filter with quick change filter cartridges
• Includes everything you need to get your aquatic home started
• Measures: 24 inches L x 12.5 inches W x 16.5 inches H

Marina

• Fits most 20Long/29 gallon Fish tanks (marine land & perfecto). there are different Aquarium manufactures. Please measure your Tank opening to the closest millimeter before purchasing!
• Dimensions: 29.21 x 11.69 x 0.16in (74.2 x 23.2 x 0.4cm)
• Features new and improved tempered glass; durable and reduces evaporation
• Clear Plastic back strip that can be cut to fit your Aquarium
• Provides the area for your Lighting to sit while allowing simple access to your Aquarium

H2Pro

• 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

OCEANIC SYSTEMS INC.

• 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

Tetra

• Save Floor Space with our 20-Gallon TitanEzeDouble Aquarium Stand; it can hold any combination of two Aquariums, Birdcages, or Other Pet Habitats; Overall Dimensions: 26-1/2" L x 31" H x 13" W; Dimensions of Interior Opening: 22-3/4" x 11-1/4"
• This Sturdy Stand is a Stylish Way to Showcase Your Pet, whether it’s a Bird, Fish, Reptile, Amphibian, or Small Animal; the Decorative Swirl on the front adds a nice touch and Fits in with Many Kinds of Décor
• Our customers love how Easy It Is to Assemble; No Tools Are Required and it Only Takes a Few Minutes to Put It Together; it’s the Only Fully Knock-Down Aquarium Stand in the pet industry
• Perfect for Classrooms, Medical Offices, Home Offices, libraries, labs, business offices, living rooms, basements, family rooms, sunrooms, screened-in porches, and more; it’s Powder Coated and Resistant to Rust and Water Damage
• Both Top and Bottom Shelves can holdone Tank Each; Put Your Much-Loved Pets on Display; Makes a Great Gift for the Fish, Bird, or Animal Lovers in Your Life

Caitec Bird Toys