super rod. but u might catch it with a good rod
Super rod use it in viridian city.
Diamond & Pearl: You can catch a Poliwhirl with a super rod on route 225. or route 225 surfing. or route 227. <(Surfing). and route 228 while surfing.
You have to use a good or super rod in route 6 and the other routes I can't remember lol
use a super rod on the pond north of vermilion city
Use a super rod in the water in viridian city.
Use a super rod in the water at viridian city.
Use Good or Super Rod and you can catch it at route 9 or 10
Use a super rod.You can fish for one in the safari zone. you can use a good rod.
If you use a super rod in the water in viridian city you can find one sometimes.
No but in violet city you can catch it's evolution poliwhirl with the old rod
Yes there are a few locations where you can find Poliwhirl in the wild specifically in the water one spot that has worked the best for me is Viridan City. Use the Super Rod in the small pool left from the Pokemon Center a couple times until it appears.
In Generation I (Red, Blue, Yellow), Poliwhirl can either be evolved from Poliwag at lvl 25 or it can be caught at Route 10 and Celedon City using the Super Rod in Red and Blue. In Yellow, Poliwhirl can be caught at Routes 22, and 23 using the Super Rod.