Do betta fish require an air stone in a 10 gallon tank? Why would

Betta - Fluval USA

My betta fish is always opening and closing its mouth and it swims rapidly in only one corner of the aquarium. What do I do? Should I get an oxygen air stone?

Do betta fish require an air stone in a 10 gallon tank? Why would

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Attheworld's 10 gallon betta tank - Full re-scape!