The best anchor really depends on the substrate of the water you are hunting.
Our own Bag Anchor design is great for anywhere that you can simply fill it with rocks. And the absolute best for when you are hike in hunting. Click Here to Check out or Purchase the Bag Anchor If you decide to not use the bag anchor than keep these considerations in mind.
In weeds, roots and mud the grapnel anchor works great. 3 lb if there is a lot to grab onto. 5 lb if there is not too much to grab. You can even get away with the 1.5 pound, but this acts more like a grappling hook than an anchor. You really need thicker weeds or branches to grab onto. If you are on sand or small pebble type shore you may need a pyramid style anchor. These are a bit more expensive, but work well. We’ve used a 5 lb one and it works for just about every situation.
USE A RODYou can also use a rod and shove it into the ground if the water is shallow enough.