Largest tropical fish Tank

10 Largest Aquariums in the World

The most common size for a home aquarium tank is probably 29 or 30 gallon, though some aquarists have constructed aquariums of many thousands of gallons. Public aquariums can be dramatically larger than any home aquarium. But only a few are big enough to make it to our list of largest aquariums in the world. The kind of aquarium that can hold whale sharks and manta rays. It takes a very large tank to hold these kind of aquatic creatures.

In order to compare these large aquariums we have looked at the size of their biggest tank (in gallons). Most aquariums have several tanks and the combined volume of water can be much larger but it is only the largest aquarium tank that is counted. So here’s a list of the largest aquariums in the world.

10Aquarium of Western Australia (0, 8 million gallons)

Located in a coastal suburb of Perth, the Aquarium of Western Australia, or AQWA in short, contains Australia’s largest aquarium tank. The aquarium’s main tank is 40 meters (130 ft) long and 20 meters (66 ft) wide and holds 3, 000, 000 liters (793, 000 gallons) of seawater. It incorporates a 98 meter (322 ft) underwater tunnel. For a fee, snorkelers and divers can get even closer to the fish, sharks, and rays by joining the aquarium’s dive master in exploring the main tank.

9Aquarium of Genoa (

Built for Expo 92, the Aquarium of Genoa in Italy is one of the largest aquariums in Europe. The aquarium’s 70 tanks reproduce marine and terrestrial habitats from throughout the world and provide a home for more than 6000 animals. Some tanks reproduce natural environments from different areas as the Mediterranean, the Red Sea and the Indian Ocean. The most spectacular ones are those housing the sharks, the dolphins and the seals.


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They are definitely hardy fish

by puppyluvins

However they do better in cooler temps. Generally between 40 and 70 is where you will see goldfish thrive. Above and below both temps they start getting pretty lethargic and don't eat as often. They don't grow as fast either.
Really its not the goldfish you have to worry about in a tropical tank, its the other fish. Especially those very sensitive to ammonia, like your Pleco,a decent ammonia spike can easily kill him. With that mix I would be testing water for sure every day.

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