Im currently using the AIO fisher lite (free script) and recently got 76 fishing. Figured I would test it out on some sharks, but for some reason it will only let me harpoon fish for swords and tuna. Any answers?

The free version doesn't support sharks. You need to upgrade to the pro version if you want to fish for sharks. IMO, it's definitely worth it. You easily make your money back.

You're using the lite version, therefore all the features aren't available to you.

 

 

 

• Capable of Fishing: shrimps, sardine, anchovies, herring, mackerel, trout, salmon, tuna, lobsters, bass, and swordfish.
• Fishing at Catherby, Lumbridge, Draynor, Barbarian Village, Al Kharid, Seers' Village
• Basic/no paint options
• Powerfishing and handfishing options
• Extensive anti-ban technology
• The Lite version will be updated as often as the premium version. (bug-wise, not premium-worthy feature-wise).
• Detection for dangerous randoms, whirlpools, and combat.
• Item detection pick-up.
• Automatically determined location (based on current tool and coordinates).
• Fail-safe timers for every possible situation.