This Tutorial will help you do fishing quickly without the use of any macro's
Steps :
1. go to any fishing area
2. start logging packets
3. after getting something from fishing "stop logging packet"
4. you'll probably get 3 packets all you need is the 1st and 3rd packet size 32 and 16
5. add them to send list and hit play/send icon
the advantage of this method is that you can alt tab and do other stuff and leave your character fishing the whole day.