can u catch a red garados in the first lake they talk about in the begiining of the game?

Answer 1

you did not mention which game

however

anywhere that you can catch gyrados, there is a chance you will get a "shiny" (shiny gyarados is red)

the liklihood of that happening is exactly 8/65536

which means that if you catch 8,192 gyarados, it's likely that ONE will be red

generally, when you fish for gyarados, you should use the super rod

Answer 2

Nope, 'fraid not.

Answer 3

no