![Amazon.com : LAQUAL 3 Gallon Ultra Clear Glass Fish Tank, Rimless Low Iron Aquarium for Betta/Nano/Goldfish/Snail/Shrimp, Small Fish Tank with Fish Net & Cleaning Tools : Pet Supplies Amazon.com : LAQUAL 3 Gallon Ultra Clear Glass Fish Tank, Rimless Low Iron Aquarium for Betta/Nano/Goldfish/Snail/Shrimp, Small Fish Tank with Fish Net & Cleaning Tools : Pet Supplies](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71QwDkoz9sL.jpg)
Amazon.com : LAQUAL 3 Gallon Ultra Clear Glass Fish Tank, Rimless Low Iron Aquarium for Betta/Nano/Goldfish/Snail/Shrimp, Small Fish Tank with Fish Net & Cleaning Tools : Pet Supplies
![Amazon.com : Koller Products 6.5-Gallon Aquarium Kit with Power Filter and LED Lighting, (AP650) : Pet Supplies Amazon.com : Koller Products 6.5-Gallon Aquarium Kit with Power Filter and LED Lighting, (AP650) : Pet Supplies](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/81wU9PskC2L.jpg)
Amazon.com : Koller Products 6.5-Gallon Aquarium Kit with Power Filter and LED Lighting, (AP650) : Pet Supplies
![Amazon.com : Tetra LED Cube Shaped 3 Gallon Aquarium with Pedestal Base : Aquarium Starter Kits : Pet Supplies Amazon.com : Tetra LED Cube Shaped 3 Gallon Aquarium with Pedestal Base : Aquarium Starter Kits : Pet Supplies](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/81aXCm6SoLL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : Tetra LED Cube Shaped 3 Gallon Aquarium with Pedestal Base : Aquarium Starter Kits : Pet Supplies
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Amazon.com : Tetra LED Cube Shaped 3 Gallon Aquarium with Pedestal Base : Aquarium Starter Kits : Pet Supplies
![Friend has a 20 gallon tank with this softball of a goldfish. I can't seem to find a solid answer online for size recommendations because I'm not sure what kind he is. Friend has a 20 gallon tank with this softball of a goldfish. I can't seem to find a solid answer online for size recommendations because I'm not sure what kind he is.](https://i.redd.it/6y3dlrogom1b1.jpg)