In Pokemon Silver, you can use the following rods to fish:
* Old Rod: The basic rod, given to you at the start of the game. You can catch common Pokemon like Magikarp, Poliwag, and Goldeen.
* Good Rod: You can get the Good Rod by talking to the old man near the Goldenrod City Gym after defeating the Gym Leader, Whitney. This allows you to catch slightly more diverse Pokemon, including Staryu, Tentacool, and more.
To catch Psyduck, you'll need the Good Rod. It's a common catch in the following locations:
* Route 34: This is the most likely spot to find Psyduck. Fish in the water north of the Goldenrod City Gym.
* Route 35: This is another good spot for catching Psyduck.
Here are some tips for catching Psyduck:
* Use a Poke Ball: A regular Poke Ball is good enough, but a Great Ball or Ultra Ball will increase your chances of success.
* Use a False Swipe: This move will bring Psyduck down to 1 HP without knocking it out, giving you a better chance of capturing it.
* Use berries: Berries like Nanab berries and Razz berries can make Psyduck easier to catch.
* Be patient: Catching Pokemon can take time. Don't give up!
Good luck with your Psyduck hunt!