Unknown; all Poliwag

Johto

HeartGold HeartGold SoulSilver SoulSilver
Fishing with an Old Rod
Poliwag
90%
L10
90%
L10
Magikarp
10%
L10
10%
L10
HeartGold HeartGold SoulSilver SoulSilver
Fishing with a Good Rod
Poliwag
90%
L20
90%
L20
Magikarp
10%
L20
10%
L20
HeartGold HeartGold SoulSilver SoulSilver
Fishing with a Super Rod
Poliwag
60%
L40
In the morning
+30%
L40
During the day
+30%
L40
60%
L40
In the morning
+30%
L40
During the day
+30%
L40
Magikarp
10%
L40
At night
+30%
L40
10%
L40
At night
+30%
L40
HeartGold HeartGold SoulSilver SoulSilver
Surfing
Poliwag
100%
L30–35
100%
L30–35