A 5-gallon or 20-liter fish tank is a perfect size for a desktop Aquarium, it will be 25x25x35cm or 20x30x35 cm and this makes it easy to put on a table or a work desktop.
Of course, it is more challenging keeping an Aquarium of this size, but challenge is what brings fun and meaning, isn’t it?
After the tank is fully set up and ready to go, you might wonder: What kind and how many fish can I keep in a 5 gallon tank, right? Let’s get into it by applying the formula: 1 inch of fish requires 1 gallon of water
| Fish Name | Fish Size (inch) | Number of Fish | |
| 1 | Neon Tetra | 1.5 (4cm) | 5 |
| 2 | Guppy | 2 (5cm) | 3 |
| 3 | Platy | 2-3 (5 – 7cm) | 2 |
| 4 | Zebra Danio | 2 (5cm) | 3 |
| 5 | White Cloud Mountain Minnow | 1.5 (4cm) | 5 |
| 6 | Harlequin Rasbora | 2 (5cm) | 3 |
| 7 | Dwarf Gourami | 2 (5cm) | 3 |
| 8 | Betta Fish | 3 (8cm) | 1 |
| 9 | Swordtail | 3-4 (7-10 cm) | 1 |
| 10 | Tiger Barb | 3 (7cm) | 1 |
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