Turn it on, and place your rod in your hand and right click it into water and let it be it will fish automatically.
Sadly, huzuni's is broken. I use wurst for auto-fish ONLY other than that, the interface is complete crap, imo wurst for fishing, huzuni for everything else.
My huzuni autofish is broken too haha, I use Wurst aswell. Huzuni is my favorite hacked client however some features are slightly glitchy.
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