Review on Underwater Adventure with Uncle Milton Undersea Encounter Aquarium and Viewing Scope by Katie Pearce

Such a small aquarium can only be used for bettas. All other fish need a good filter, warmth and oxygenation. And yet it's too little to even be worth it. My advice to you is save your money and buy a 10 gallon kit and use it as a starting tank. Then you can keep real fish. Also, goldfish should be kept in at least a 30-gallon tank. Even if you have a 10 gallon tank, please research the fish before purchasing.