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.
A Long life for a Betta is around 30 months.
None are recommended if the Betta is a male.
You don't! What you do is get a 55 gallon tank because angelfish won't be happy in a 10 gallon tank, and then you take the betta out of the tank (it will fight with your other fish) and just get more mollies and put lots of hiding places in the tank so the babies will live.
Go fish
No