If you are talking about the big fish on Club Penguin you are supposed to leave one of those yellow fish on the hook and when the big fish comes it will eat it and then you watch a very short clip of your penguin reeling up the big fish. I think the big fish gives you about 100 extra coins. When you use the small yellow fish as bait don't catch it too early or else it can jump off the hook! Trust me it happened to me. Hope I helped!
just keep at it
they are in extreme mode and in story waters mix the to and get big fish. The monster or named fish in flick fishing do not have to caught in extreme mode. Although you will need a golden charm form the old man in the lighthouse to catch them. So you will have to finish all his quest first to catch them. There is at least one special fish in each location just make sure oyu have the right bait
After completing the lighthouse requests, you receive a golden charm that helps you with the monster fish, so complete the quest first
Just try different bait
You catch bigger fish
Cast 30ft. With bait fish.
I used a lure to catch bonito fish ( at Blue Deeps)
You keep fishing in old pond and keep using bait fish
Go to waves of doom and use bait fish
Just tap the cast button so it's at about 19 feet and use bait fish. Fish at the old pond.
In the lumbridge castle can't you fish for bonito in flick fishing
Waves of Doom. Use bait fish. Cast 210 ft.