Editor's Choice - Our Favorite 20 Gallon Aquariums

1. Ameriwood Home Flipper 10/20 Gallon Aquarium Stand, Black Oak, 15.7 x 25 x 28 inches

User Ratings: 70 6

Flipper 5695325COM First Impressions

"Seems a little wasteful."

My sponge, duster worms, snails and crabs, porcelain and emerald are doing well. It's simple enough to put together. An Eco Bio block is a good idea to. Looks very similar to more expensive tanks for much less. FOLLOW THE INSTRUCTIONS THAT COME WITH IT. I think I am going to get the 28 gallon also for my office area in the loft. It comes with everything you'd want besides a heater and protein skimmer.

• Ameriwood Home Flipper 10/20 Gallon Aquarium Stand, Black Oak, 15.7 x 25 x 28 inches
• age range description: All Life Stages
• special features: Made In AmericaIncludes Stand
• Manufacture: AMJG7
• Product Dimensions: 15.69 x 25 x 28 inches; 42 Pounds

• Editor's Impressions Of The Flipper 5695325COM
• Quality [star rating='4.7']
• Value For Money [star rating='5']
• Affordability [star rating='4.9']

Peoples Choice - Other Highly Rated 20 Gallon Aquariums

2. DreamDealsSG 100x Tourmaline Balls for Freshwater Aquarium Tank. Mineral Supplement Substrate. Live ...

User Ratings: 70 3

DREAMDEALS So Good First Impressions

"I've had it a day so far."

I didn't notice the dust on the glass until I reviewed the zoomed in pictures. You can see the pic and decide what's right for your needs. Not a single smear or excess silicon in any place, no bubbles, ymmv. It comes with everything you'd want besides a heater and protein skimmer. I set this up just like I would have a big salt tank. Mostly I just love looking at this tank. The instructions are maybe two pages.

• DreamDealsSG 100x Tourmaline Balls for Freshwater Aquarium Tank. Mineral Supplement Substrate. Live Shrimp Food, Betta Fish Food, and Crayfish Food. Water Conditioner for Freshwater Shrimp etc.
• Vibrant health: Just like vitamins, minerals and pH balanced water for humans, your Shrimp, Bettas, Crayfish and Snails also need those things for bright colors, healthy breeding, molting and play! So, when you add DDSG Mineral Balls to your tank you’re giving your fishy friends, the best of health!
• How do they work? Out in the wild, cherry shrimp, ghost shrimp, amano shrimp, freshwater fish and all other water-lovin’ life are constantly exposed to pH balanced, mineral water from earth’s rocks – with natural bacteria. This is how they molt, breed and maintain healthy vibrancy. Our organic tourmaline is a natural rock with over 30 minerals to keep your tank balanced just like those wild waters.
• Size and quantity: This is the most cost effective pack you’ve found on your search. Chances are you have at least one 10 gallon fish tank (but commonly 20 gallon tank, or 50 gallon). And because you’ll add one ¼ inch ball per gallon, you’ll need enough for every tank! So this 100 pack makes perfect sense.
• Copper-free! Of course you may have some nerite snails and other friendly things in your shrimp tank, so you’ll love knowing each tourmaline ball is copper-free! And because they’re natural and pH balanced they keep your aquarium crystal clear, free from impurities, ammonia and hold a stable pH balance. And because they’re so mineral rich, your aquatic plants will get the nutrients they need, too.
• Calcium-enhanced and more: DDSG Mineral Supplement beads contain 30 minerals including calcium, iron, magnesium, sodium, boron, manganese and more. It’s like a daily dose of Spirulina for our splashy pals! Suited for freshwater aquarium snails, betta tank, freshwater shrimp, live crayfish and goldfish. So, feed them well, keep them clean, and supplement with DDSG Minerals so they can dazzle you for years!
• Manufacture: Dreamdeals
• Item Weight: 3.98 ounces

• Editor's Impressions Of The DREAMDEALS So Good
• Quality [star rating='4.6']
• Value For Money [star rating='5']
• Affordability [star rating='4.3']

3. Flipper 10/20 Gallon Aquarium Stand, Rustic Oak

User Ratings: 72 4

Flipper 5695333COM First Impressions

"Pretty Happy."

Mine's sitting on the carpet, and it's completely silent that way. Beautiful tank, had a local glass co. My biggest gripes about it are the lack of room in the back. Mostly I just love looking at this tank. I immediately noticed that the glass moves slightly in the corners when pressed on. You can't even see the pushed in spots. A little piece of foam in the bubble tube keeps gravel out while putting it in.

• 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
• Manufacture: Dorel - Multiple - Parent - DROPSHIP
• Product Dimensions: 15.67 x 25 x 28.03 inches; 42 Pounds

• Editor's Impressions Of The Flipper 5695333COM
• Quality [star rating='4.5']
• Value For Money [star rating='4.5']
• Affordability [star rating='3.8']

4. Aqueon Aquarium 20 Gallon Long

User Ratings: 72 10

OCEANIC SYSTEMS INC. 100110021 First Impressions

"Absolutely luv it."

I could not put water in it as shipped because the return pump was compromised. I added a small circulation pump to get better water movement. Overall great package and would definitely buy it again and recommend it. Mostly I just love looking at this tank. Not a fan of the filtration sponge. That will make it easier to maintain the water temp and find a heater. The BioOrb does an amazing job keeping the tank clean and fresh.

• 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
• Manufacture: Aqueon
• Product Dimensions: 30.25 x 12.5 x 12.75 inches; 22 Pounds

• Editor's Impressions Of The OCEANIC SYSTEMS INC. 100110021
• Quality [star rating='4.3']
• Value For Money [star rating='5']
• Affordability [star rating='3.8']

Honorable Mentions - More Top Selling 20 Gallon Aquariums

5. Aquarium Masters Aquarium Lid - Glass Canopy Two Piece Set for 80 Gallon, 120 Gallon, 150 Gallon Aqu...

User Ratings: 36 16

Aquarium Masters AM13521 First Impressions

"My betta really likes it."

It started to malfunction immediately upon being plugged in. I didn't even add the skimmer, and it has be perfect. I could not put water in it as shipped because the return pump was compromised. All in all it is packaged very well. I purchased one of the biOtube plant sets also. Final gripe and its not a big deal is that there isn't a lid over the feeding hole. I could not put water in it as shipped because the return pump was compromised.

• Aquarium Masters Aquarium Lid - Glass Canopy Two Piece Set for 80 Gallon, 120 Gallon, 150 Gallon Aquariums 48" Long x 24" Wide (48x24) with A Center Brace Aquariums, Deep Blue & More, AM34824
• Please measure your tank opening to the closest 1/16 of an inch before purchasing. Each aquarium brand has a different size frame and opening for canopies
• New Aquarium Glass Canopy for 80 gallon, 120 gallon, & 150 gallon aquariums 48" long x 24" wide by Aquarium Masters Aquariums, Deep Blue & more, AM34824.
• Contains Two non-tempered 22-13/16 inch by 22-7/16 inch glass canopies, making it safer for your fish. Comes with 2 inch wide plastic backstrip that can be cut to accommodate airline tubing, heaters, and other gear. Each canopy comes with a handle and each canopy folds open
• Fits the following framed standard and reef ready aquariums: 80, 120, 150 Gallon Aquarium Masters Aquariums, Deep Blue Aquariums and Seapora Aquariums
• Before purchasing, please see our video on "How to determine the canopy you need", located in the photos section of this listing!! Aquarium Masters glass canopies include diamond polished edges, handle, hinge, and backstrip on most standard models. Glass canopies available for 10 gallon to 360 gallon aquariums.
• Many fish can and will jump out of your aquarium. Nearly all fish can do this for numerous reasons.
• On a similar note, a cover will help foreign objects from falling into the aquarium. If there are young children or pets in your household, this could be a very important consideration. Same thing if you keep any supplies above the tank.
• A cover reduces evaporation, which means you will not lose water as quickly. This can be pretty noticeable in warm water systems. Evaporation can also leave mineral deposits behind.
• Manufacture: Aquarium Masters
• Product Dimensions: 24 x 24 x 2 inches; 10 Pounds

• Editor's Impressions Of The Aquarium Masters AM13521
• Quality [star rating='4.3']
• Value For Money [star rating='2.9']
• Affordability [star rating='4.6']

6. Aquarium Masters Single Piece Glass Canopy for 20L, 29S, 37H Gallon Aquariums, AM33012, for 30" Long...

User Ratings: 65 35

Aquarium Masters AM33012 First Impressions

"It's gorgeous."

I have been an active fish keeper for years. They are affordable and beautiful and well made. 1 gallon puts my other 7 tanks to shame. This arrived a little over 24 hours ago and I will update as a resolution comes. My other gripe would be with the lid. I find them very easy to keep clean. It started to malfunction immediately upon being plugged in.

• Aquarium Masters Single Piece Glass Canopy for 20L, 29S, 37H Gallon Aquariums, AM33012, for 30" Long x 12" Wide Aquariums with No Center Brace
• New Glass Canopy for 20 gallon Long, 29 gallon show, & 37 gallon high 30" long x 12" wide by Aquarium Masters Aquariums, Deep Blue & more, AM33012
• Contains One 29 inch by 9-9/16 inch folding glass canopy, comes with 2 inch wide plastic backstrip that can be cut to accommodate airline tubing, heaters, and other gear. The canopy comes with a handle and the canopy folds open
• Fits the following framed standard and reef ready aquariums: 20L, 29S, 37H by Aquarium Masters Aquariums, Deep Blue & more with no center brace
• Aquarium Masters glass canopies include diamond polished edges, handle, hinge, and backstrip on most standard models
• Before purchasing, please see our video on "How to determine the canopy you need", located in the photos section of this listing!! Glass canopies available for 10 gallon to 360 gallon aquariums
• Many fish can and will jump out of your aquarium. Nearly all fish can do this for numerous reasons.
• On a similar note, a cover will help foreign objects from falling into the aquarium. If there are young children or pets in your household, this could be a very important consideration. Same thing if you keep any supplies above the tank.
• A cover reduces evaporation, which means you will not lose water as quickly. This can be pretty noticeable in warm water systems. Evaporation can also leave mineral deposits behind.
• Manufacture: Aquarium Masters
• Product Dimensions: 29.25 x 9.56 x 0.38 inches; 10 Pounds

• Editor's Impressions Of The Aquarium Masters AM33012
• Quality [star rating='4.6']
• Value For Money [star rating='4.1']
• Affordability [star rating='2.9']

7. Aquarium Masters Single Piece Glass Canopy for 20L, 29S, 37H Gallon Aquariums, AM33012, for 30" Long...

User Ratings: 65 35

Aquarium Masters AM33012 First Impressions

"Great tank."

I do 1 drop per two gallons 3x a week for first few months. Overall great package and would definitely buy it again and recommend it. I really like the ceramic media as it provides a great home for the'good' bacteria. I will definitely be purchasing a Landen tank for all future purchases. I immediately noticed that the glass moves slightly in the corners when pressed on. I bought two of these tanks and the quality of them in just amazing. I've built a fresh nano planted tank using this.

• Aquarium Masters Single Piece Glass Canopy for 20L, 29S, 37H Gallon Aquariums, AM33012, for 30" Long x 12" Wide Aquariums with No Center Brace
• New Glass Canopy for 20 gallon Long, 29 gallon show, & 37 gallon high 30" long x 12" wide by Aquarium Masters Aquariums, Deep Blue & more, AM33012
• Contains One 29 inch by 9-9/16 inch folding glass canopy, comes with 2 inch wide plastic backstrip that can be cut to accommodate airline tubing, heaters, and other gear. The canopy comes with a handle and the canopy folds open
• Fits the following framed standard and reef ready aquariums: 20L, 29S, 37H by Aquarium Masters Aquariums, Deep Blue & more with no center brace
• Aquarium Masters glass canopies include diamond polished edges, handle, hinge, and backstrip on most standard models
• Before purchasing, please see our video on "How to determine the canopy you need", located in the photos section of this listing!! Glass canopies available for 10 gallon to 360 gallon aquariums
• Many fish can and will jump out of your aquarium. Nearly all fish can do this for numerous reasons.
• On a similar note, a cover will help foreign objects from falling into the aquarium. If there are young children or pets in your household, this could be a very important consideration. Same thing if you keep any supplies above the tank.
• A cover reduces evaporation, which means you will not lose water as quickly. This can be pretty noticeable in warm water systems. Evaporation can also leave mineral deposits behind.
• Manufacture: Aquarium Masters
• Product Dimensions: 29.25 x 9.56 x 0.38 inches; 10 Pounds

• Editor's Impressions Of The Aquarium Masters AM33012
• Quality [star rating='2.7']
• Value For Money [star rating='2.6']
• Affordability [star rating='2.7']

8. SC Aquariums 120 Gallon Starfire Glass Aquarium 48x24x24 12mm Eurobraced with Built-in Overflow Box

SC Aquariums First Impressions

"This tank is super small."

It really makes it easy to keep the outside surface clean and shiny! Highly recommend this for beginners. I used an Aquatop Np302 and the tubing from the Portrait as my return pump. I could not put water in it as shipped because the return pump was compromised. I didn't want to cover the filter because it would make cleaning harder. I recommend buying the biOtube polish to! I have been an active fish keeper for years.

• SC Aquariums 120 Gallon Starfire Glass Aquarium 48x24x24 12mm Eurobraced with Built-in Overflow Box
• Size: 120 Gallon Aquariums 48x24x24" 12mm Eurobraced
• Starfire (Low Iron) glass on front 3 Sides
• Black Background, Black Silicone
• built-in Overflow Box, max flow 1500 GPH (3 holes drilled inside all fit SCH40 1" bulkhead)
• SCH40 Plumbing Kit included
• Manufacture: SC Aquariums

• Editor's Impressions Of The SC Aquariums
• Quality [star rating='5']
• Value For Money [star rating='5']
• Affordability [star rating='5']

Here Are Some Other Related Aquariums

9. Starter Fish Tank Kit with Double Divider System Promotes Betta Flaring EZ-Clean System - Skroutz De...

User Ratings: 47

Unknown First Impressions

"Really beautiful tank."

I could not put water in it as shipped because the return pump was compromised. And my Midas Blenny and Cleaner shrimp are doing so well in it. My biggest gripes about it are the lack of room in the back. It's simple enough to put together. Bottom line is~28 hours after receipt this is one star. I added some privacy film to help hide the cords and the hang-on-back filter. You can see the pic and decide what's right for your needs.

• Starter Fish Tank Kit with Double Divider System Promotes Betta Flaring EZ-Clean System - Skroutz Deals
• This cunning tank gets the best out of your bettas, by a wide margin the most prominent fish. Bettas are forceful, and it's intriguing to watch them flare their balances when they see one another.
• The twofold divider framework keeps them from really assaulting one another and demolishing each other's dazzling crest.
• The bow-front structure gives better, amplified seeing, and these tanks are cunningly stackable so you can fabricate a betta show like nobody else.
• It comes only with Skroutz unique E-BooK
• Manufacture: Skroutz Deals

• Editor's Impressions Of The Unknown
• Quality [star rating='3.8']
• Value For Money [star rating='3.9']
• Affordability [star rating='3.8']

10. BioCube Coralife Size 32 Basic Reef Aquarium Bundle (6 Items)

BioCube First Impressions

"I would buy another."

All in all it is packaged very well. I spoke to a gentleman in customer service named Julio this afternoon. The pic is a bit cloudy since I just filled it up and its still cycling. The most serious issue thus far is the light bar. Just like the aquariums I saw in the aquascaping videos I watched on YouTube. We had a new home built this year, and just moved in. It's simple enough to put together.

• BioCube Coralife Size 32 Basic Reef Aquarium Bundle (6 Items)
• This Deluxe Reef Aquarium Bundle combines 6 products: the Coralife Size 32 LED BioCube Aquarium with the BioCube Stand, and NEW STYLE BioCube Protein Skimmer (V2) w/Needle Wheel along with a FREE Inland Seas 3 oz Activated Carbon, FREE BioCube Algae Cleaning Magnet and FREE Coralife Deep Six Hydrometer.
• The Coralife Size 32 LED BioCube Aquarium features LED lighting and timer capabilities–taking it to the next level of all-inclusive aquariums. It has a compact and customizable filtration chamber, hinge-top canopy design, quiet submersible pump, dual intakes, adjustable return nozzle and clear glass back panel for easy refugium set-up.
• The Coralife BioCube NEW STYLE Protein Skimmer (V2) w/Needle Wheel is a step up from the old skimmer that used an airstone and an air pump. This Skimmer fits perfectly in the back chamber of the BioCube.
• The Activated Carbon, Algae Cleaning Magnet and Deep Six Hydrometer are three essential items for running a successful reef aquarium. The BioCube Size 32 Aquarium Stand is built just for the BioCube 32. This attractive stand features tinted acrylic door panels, holes in the back for routing electrical cords and a storage shelf. The Stand does need to be assembled.
• With these 6 products you will have much of what you need to have an amazing BioCube (except, of course, the coral, fish & water). If you need advice choosing more product for your BioCube, feel free to contact us for advice. And, if you’re not sure how to use all of these products properly, no need to worry. We include a simple setup guide.
• Manufacture: Coralife & Inland Seas

• Editor's Impressions Of The BioCube
• Quality [star rating='4']
• Value For Money [star rating='5']
• Affordability [star rating='4.6']