When you hook a big fish, reel it in slowly, or the fish will get away. Only reel it in one or two clicks at a time. Click again when the fish is not being pulled up, and is swimming forward or down. Keep doing this at a steady pace, and you will soon catch the fish.
A small tip: If you only want big fish and you hook either a normal or a small one, just click "Go Fishing!" again and you will not lose a worm to get a fish you don't want. I tried this and it didn't work for me... personally, I'm not sure how to catch one at all.
On Prison Isle
No you cannot.
Yellow fish is - Adolphus, Green fish is - Gustavus, and Purple fish is - Mercurius
Adolphus
Green Fish - Emerald. SweetDream, Brown server. :)
isle 2
It is pretty simple; they catch fish.
sometimes it depends on what fish you are trying to catch
Adolphus, Gustavus, and Mercurius.
Beavers don't catch fish
you can catch sun fish with a fishing pole
Any items you pick up or make, as well as horses you catch.