How do you get shellder Pokemon LeafGreen?

you must use a super rod in pallet town....thats how i got mine

Gurgle528: You can also catch Staryu there, for Leaf Green. in Leaf Green you must trade to get a shellder.

i thought u had to trade gurgles WRONG listen to the super rod person I'm going to try that DONT LISTEN TO GURGLE u can trade though with fire red

actually i tried super rod 57 times!!!! in pallet town all i saw and got was staryu and gyarados :/ signed sethers554