Originally Posted by Bob Jack
weight in trap, type of bait, depth, and length of time submerged.
Weight depends on the weight of the trap, current, size of float. You don't want the trap to move, but more weight makes recovery more work.
Bait varies with the location. In some locations, pellets are king, in others, cat food.
Depth also varies with location. I haven't tried less than 250' or greater than 450', but you get to know when your trap comes up empty that it is tile to try a different depth.
Time submerged varies with location. In some, the current will wash out the bait in a few hours. In others, never. Once the bait is gone, you are merely storing the few prawns that have entered your trap, not attracting more.
Have fun learning what works for you.