I know that you get the super rod in Route 12.
Go to the rocky beach area and use the super rod.
The old rod is located in Route 32 from a Fishing Guru (look for him) The Super rod is located in Route 12 from...again..a fishing guru (look for him)
Route 44. You catch it with the super rod or the good rod but the super rod has a slightly better chance and you get a miles better pokemon. Good Rod: 2% chance level 20 Super Rod: 3% chance level 40 You can also catch it while surfing when there is a swarm of them. There is a 90% chance of getting it but it's level is unpredictable.
you can catch corsola by fishing with a super rod in cianwood city while having the sinnoh music on.
I know that you get the super rod in Route 12.
You can find them in the Whirl Islands by Surfing or Fishing with a Super Rod.
to get level 40 water Pokemon you first have to get a super Rod (from house on RT. 12) and get it by fishing. The Super Rod wil only get you level 40 Pokemon.
There is only old, good, and super rods in Pokemon Heart Gold.
You must evolve Dragonair (available from the Dragon's Den; use super rod) to get it.
Go to the rocky beach area and use the super rod.
Old Rod---Route 32 from the Fishing Guru Good Rod---Olivine City from the Fishing Guru Super Rod---Route 12 from the Fishing Guru
The old rod is located in Route 32 from a Fishing Guru (look for him) The Super rod is located in Route 12 from...again..a fishing guru (look for him)
Use a fishing rod.
Route 44. You catch it with the super rod or the good rod but the super rod has a slightly better chance and you get a miles better pokemon. Good Rod: 2% chance level 20 Super Rod: 3% chance level 40 You can also catch it while surfing when there is a swarm of them. There is a 90% chance of getting it but it's level is unpredictable.
you can catch corsola by fishing with a super rod in cianwood city while having the sinnoh music on.
The Super Rod is not obtainable in Pokemon Indigo/UnovaRPG.