Is 20 L Big Enough For A Betta

[sneezy]

Specifically this tank.

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I know bettas need 5 gallons but is this UK or US??

 

[Truck]

that is fine for a betta

 

[Spishkey]

perfect for a betta.

i see it comes with a filter but no heater though. you will need to buy a heater then!

 

[joey54321]

look fine you will need a heater as well