Yes. A 10 gallon tank is the size experienced aquarists recommend for keeping a Betta in. Add a few plants, a cycled filter and change 50% of its water weekly and you will have a healthy and happy fish, particularly if you give it some live food occasionally. Don't forget that Bettas are tropical fish, so the tank will need a heater/thermostat set at 78F and a thermometer to keep a check that all is well temperature wise.
Any.
betta fish like at least a 1 gallon tank (nothing smaller) > They can live in a community tank but with no other bettas.
you can put a betta in a 5 gallon tank
While a betta fish can technically survive in a 1.5 gallon tank, it is not an ideal environment for their well-being. Betta fish require at least 5 gallons of water to thrive, as smaller tanks can lead to poor water quality and limited swimming space. It is recommended to provide a larger tank with proper filtration and maintenance for the betta fish's health and happiness.
The only fish you can keep in a 5 gallon tank is one betta (Siamese fighting fish) on it's own as that is a very small tank.
A betta fish would be much more suited to a 1 gallon tank than a 'variety'. You shouldn't keep much more than one fish per gallon anyway.
A 1 gallon tank could have one betta fish, but you will need to be diligent about changing the water on a regular basis. The smallest tank that should be used, even for a betta, is a 2.5 gallon tank as it at least gives the fish swimming room.
None are recommended if the Betta is a male.
A Long life for a Betta is around 30 months.
Go fish
Yes.
No