Well, save right before you choose your starter. Pick Squirtle, and if it happens to be a girl great. But if not, turn off your game and restart. Repeat until the Squirtle is a girl (it happens on a random basis, boys are more likely than girls though)
OR
You can start out with you male Squirtle, catch a Ditto, and on island four (or one of them), you can breed you Blastoise with a ditto and keep producing eggs until you recieve a female Squirtle.
Squirtle is only obtainable if you chose it at the beginning of the game you must get one from another firered or leafgreen then give it to your firered and then you can finish your pokedex.
firered and leafgreen version
If you picked Squirtle as starter, you can evolve your Squirtle into Wartortle. Otherwise you'll have to trade with someone who picked Squirtle as starter.
You can only obtain squirtle as your starter pokemon( your first pokemon) or through trade.
you have to start with squirtle and beat the elite 4
yes near vermillion city there is a camper near a lass or camper girl he has a squirtle.
You get Squirtle as one of the starter pokemon.
Squirtle can be acquired by trading for one from a Firered/Leafgreen.
Squirtle is only obtainable if you chose it at the beginning of the game you must get one from another firered or leafgreen then give it to your firered and then you can finish your pokedex.
You can't.
firered and leafgreen version
bulbasaur, squirtle and charmander
you have to get squirtle as your starter
If you picked Squirtle as starter, you can evolve your Squirtle into Wartortle. Otherwise you'll have to trade with someone who picked Squirtle as starter.
You can only obtain squirtle as your starter pokemon( your first pokemon) or through trade.
you have to migrate from leafgreen/firered from squirtle
only if you had a gameshark or if it was your starter