Fish Tanks & Aquariums | PetSmart

20-gallon (76 litre) tanks

Tanks this size are ideal starting points for anyone entering the hobby. In the United States 20-gallon tanks are available in “tall” and “long” varieties. The tall tanks measure roughly 24 inches in length and 17 inches in depth; the long tanks are 30 inches in length and 13 inches in depth. All else being equal, the long tank is better. Long tanks offer more swimming space and have a greater surface area to volume ratio, meaning oxygen diffuses into the tank at a faster rate. You can keep more fish, more happily, in a long tank than a tall tank.
Do tall 20-gallon tanks have any advantages? Not many. They are perhaps a bit easier to decorate with tall plants and rocks, and having a smaller footprint they take up less space on a tabletop or shelf. Greater depth does work better with certain small but tall fish, in particular domesticated angelfish. But beyond that, these tanks are far inferior to long tanks for general fishkeeping and are best avoided by less experienced hobbyists.

Species useful in 10-gallon tanks will do even better in a 20-gallon tank. In the case of things like small tetras, you can keep larger groups. If you have a nicely planted aquarium, consider keeping two dozen neons for example. Otherwise some of the additional species you can sensibly keep in a 20-gallon tank include the following:

Yescom Aquarium Internal Filter 3in1 80GPH 300L/H For 20 Gallon Fish Tank Water Pump · Price.

I've been thinking about restarting my old 20gal tall tank, and I'm trying to plan ahead as to how I want to set it up. I'm toying with the idea of Glofish or gouramis. I've had Glofish before and really liked them, and I'd love to have the new blue and purple additions. I have black gravel, but I can't decide on how else I want to decorate. I don't want the flourescent plants because I feel it'll take away from the beauty of the Glofish. Also, if I go Glo, I was thinking of 2 or 3 of each color (total of 10-15) but I'd like to have something else to accent them... I'm thinking a slightly larger white fish of some kind, maybe a betta, or bottom dwellers.

Aqueon® 20 Gallon Hex Aquarium Starter Kit.

Shop for 20-gallon fish tanks, LED aquariums, betta aquariums, cube aquariums, starter .. Keeping durability, water-resistance, and visual appeal in mind, we must make sure the stand fits your aquarium. There are 2 standard dimensions for 20 gallon aquarium tanks. We must make sure you know if your aquarium is 20 gallon high or 20 gallon long, so that we can ensure your fish tank fits the 20 gallon aquarium stand's dimensions. These dimensions are: The following 20 gallon aquarium stands will fit both a 20 gallon long aquarium and a 20 gallon high aquarium. The dimensions listed in the table at the top of this page fit the long 20 gallon aquariums perfectly. A few of the 20 gallon aquarium stands listed above also are available in slightly smaller models that make closer fits for 20 gallon high aquariums. We will discuss all the details of these 5 great 20 gallon aquarium stands below. The Advanced Aqua Tanks Laguna Aquarium Stand is the perfect 20 gallon aquarium stand for those looking for high quality furniture for their home. This stand fits both high 20 gallon aquariums and tall 20 gallon aquariums as our recommended size is 32 L x 13 W x 31.5 H inches. For this 20 gallon aquarium stand there is no smaller, closer fit for a 20 gallon high aquarium.

All Glass Aquarium (AGA) Aqueon 20 Gallon High Aquarium.

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