Betta Tank Size Calculator

3.0(0)

Calculates the minimum recommended tank size for a Betta fish based on the number of Bettas and tank setup (community or solo).

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Number of Bettas and Tank Type in the units shown.

Step 2

Read Important Notes and Minimum Recommended Tank Size in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Single Betta

Number of Bettas: 1; Tank Type: Solo Betta

Important Notes: ; Minimum Recommended Tank Size: 5 gallons

Two Solo Bettas

Number of Bettas: 2; Tank Type: Solo Betta

Important Notes: Bettas are territorial and should generally be kept alone. Keeping multiple bettas in the same tank can lead to aggression and fighting, potentially resulting in injury or death. A much larger tank with plenty of hiding places is needed if you are keeping multiple bettas together.; Minimum Recommended Tank Size: 10 gallons