at the end to catch mullet you need to get a fish but leave it dont take it up and catch it,leave it in the water and then when mullet comes put the fish in his mouth and you get a 50 coin bonus!

This will be great for noobs!

What I like to do in this cheat/secret, I catch a fish and keep it until another fish comes because I know it's almost the time the mullet comes...

Thats what I do too CallMeAlex!