On the tv,
No
You can only get Squirtle in LGFR.
You can only obtain squirtle as your starter pokemon( your first pokemon) or through trade.
PokeTransfer or Dream World
Charmander Squirtle Bulbasaur And Giritina
No
you have to get squirtle as your starter
get squirtle as starter
You cant catch a squirtle in Pokemon firered nor in Pokemon leafgreen. Squirtle is a starter Pokemon so you cant find or catch one unless you use a game shark.EDIT by Man spider27: Although it is- as far as I know- impossible to capture Squirtle or Bulbasaur in Pokemon leafgreen it is possible to find Charmander in the Old Mansion on Cinnabar island. Hope I helped!
No
there are no blastoise have to get squirtle and evolve it
It is a starter pokemon. You can not find it in the wild. You can also trade for it.