The Snell knot and the Palomar knot are two of the most often used magnet
  fishing knots. Magnet fishing also requires Figure 8 loops and the Palomar
  knot. This post will go through how to tie these knots such that they work
  every time. Other knots to master are as follows:
    
Snell knot
  When going magnet fishing, it's critical to use the proper knot to secure the
  magnet to the fishing line. Magnets are pricey and tricky to connect to your
  fishing line without overtrying them. Simple knots, such as those used on
  fishing lines, should be avoided since they are prone to unraveling.
  Fortunately, there are various varieties of magnet fishing knots to select
  from, including the Snell knot.
  The Snell knot is a favorite among anglers for a variety of reasons. When the
  magnet is dragged through the loop, it will not come undone. It's very simple
  to tie, and many internet sellers offer prefabricated knots with carabiner
  clips, making switching between magnets a breeze. You can also purchase
  prefabricated loops with various sorts of magnets so you know which ones work
  best with particular magnets.
  When choosing the correct rope for magnet fishing, keep the weight of the
  magnet in mind. You'll need a rope that can sustain a weight of 250 pounds,
  but if the magnet is heavy, you may need a heavier rope. Most people choose
  paracord and braided rope because they float and are resistant to decay.
  However, if you want to use a strong magnet, nylon rope is the most robust
  fabric and resists rotting, mildew, oil, and corrosive substances. Nylon ropes
  have the most flexibility and absorb the most stress.
  One of the most adaptable fishing knots is the Snell knot. It may be attached
  to a carabiner or rock climbing hook and even used as an improvised seat.
  While it isn't the most practical knot for magnet fishing, it is nevertheless
  handy for a variety of other things. If you want to attempt it, keep in mind
  that it isn't as complex as a double figure eight, therefore you could find it
  simpler to learn than tying a double figure eight.
Figure 8 loops
  Bights are the top and bottom bights of the rope. These bights are the rope's
  initial bights. After then, double the rope and make a loose knot. Wrap the
  remainder of the slack around the eyebolt. Make sure the knot is all the way
  to the magnet. This is a popular knot among magnet fishing aficionados.
  To fasten the magnet to your rope, tie a figure 8 loop knot. It is also used
  for rock climbing. You risk injury if your knot is too weak to retain your
  magnet in place. Check that the knot is strong enough to support the weight of
  the magnet and your rope. You may securely fish with the magnet this way.
  Figure 8 loops also assure the magnet's safety. The tail of the rope must pass
  through the loop and then wrap around the standing strands to create a figure
  eight knot. Holding the ends together, tighten the knot.
  Double figure eight loops are more powerful and stable than single figure
  eight knots. Despite being more solid, this knot will not come undone quickly,
  particularly when the burden is heavy. Double figure 8 loops are an excellent
  option for critical loads, such as those necessary for rock climbing or magnet
  fishing. Double figure eight loops may even be used as an impromptu seat!
  A 100-foot rope is ideal for this use. It is long enough for most scenarios
  and also allows the magnet to reach far away from you. Because the rope is
  just eight millimeters thick, it is simple to make knots with. Choose a rope
  with a diameter of 6mm or 8mm for best endurance. Then attach two more ropes
  to it. The rope will not rip or break when the magnetic line is withdrawn from
  the water, making it an excellent option for fishing.
  Magnetic fishing is a terrific technique to gather goods that is also
  enjoyable for the whole family. It's also an excellent method to keep the
  river clean. Remember to tidy up your discoveries after you're through!
  Remember to wash off the rope and magnet before storing them. You don't want a
  faulty magnet that breaks when you attempt to remove it.
The Palomar knot
  The Palomar knot should be your first option when tying a magnetic fishing
  line. This basic knot is simple to make and has the added bonus of being
  incredibly trustworthy, especially if you're new to magnet fishing. It's
  straightforward to use and can endure a lot of damage since it's so simple to
  knot. Here are some pointers to help you knot a magnetic fishing rope:
  You'll need around 50 to 100 feet of rope. The length of your rope is
  determined by the sort of fishing you want to conduct. If you're fishing from
  a boat or bridge, a longer rope is recommended than if you're fishing from
  shore. A rope should be reasonably priced so that you can afford it. A
  carabiner should also be fastened to your line. The Palomar knot is ideal for
  tying a lengthy rope using.
  The square or overhand knot may also be used. Both knots have their uses, but
  none provides the requisite strength for magnet fishing. To ensure that your
  magnetic line remains in place, utilize the Palomar knot. While these knots
  are strong and useful in other situations, they are not ideal for magnet
  fishing since they may untie themselves within the water. Make sure your knot
  is strong enough to withstand the tension that comes with magnetic fishing.
  The Palomar knot is the most powerful magnet fishing knot known, yet it's also
  the simplest to tie. It's simple to knot and self-tightens when pressure is
  applied. This means you can use the knot to fish with magnets without worrying
  about it loosening or falling out. The Palomar knot is the way to go if you're
  new to magnet fishing. Once you know how to tie it correctly, it's time to go
  fishing! You'll be well on your way to magnet fishing success after you've
  mastered a few fundamental knots.
  The double figure eight is another magnet fishing knot. Anchors and
  conventional fishing both benefit from double figure eights. This knot has
  double the strength of a single figure eight. It has advantages and
  disadvantages, and although it isn't as strong as the Palomar knot, it's still
  a decent option for your fishing line. Make sure you have the proper sort of
  knot for your line when utilizing the double figure eight.
Figure 8 follow-through
  To use a magnetic lure properly, you must first learn how to tie strong knots.
  If your knot breaks while attempting to draw your magnet out of the water, you
  may catch a hefty underwater item or lose your magnet completely. The figure 8
  follow-through is my favorite magnet fishing knot. View a video demonstration
  of how to tie this knot. The palomor knot is another powerful magnet fishing
  knot. If you are unsure about learning this knot, try purchasing a guide to
  help you.
  Wrapping the rope ends eight times creates the Figure 8 loop. The working end
  connects the first bight with the bottom bight. Tighten the knot by passing
  the working end through the opposite end of the beginning loop. Wrap the
  leftover slack to form the figure eight again. Make sure the working end of
  the rope is firmly connected to the top bight.
  The figure 8 loop knot is then tied. This knot should be tied before the main
  knot on the end of the rope. A basic uni knot should be used for the main
  knot. Tighten the knot by pulling on the rope. If required, you can always
  loosen the knot. The loop is a possible snag site, so tie the knot with
  caution. If you're a newbie, you may substitute the palomar knot. This easy
  knot will hold your magnet in place while fishing.
  Finally, choose a magnet with a strong draw. If your magnet is too little or
  too weak, you won't be able to capture a huge fish. A high draw force is
  required for a strong magnet to perform efficiently, hence a high grade magnet
  will have one. Look for one with an eyelet so you can easily connect it to
  your rope. This will avoid snagging by mistake. Because the magnet does not
  get trapped in the water, this approach is also ecologically benign.
  The figure 8 follow-through is another excellent magnet fishing knot. This is
  the most frequent method for connecting a rope to a magnet. A carabiner clip
  may also be used. The figure 8 follow-through, on the other hand, is simpler
  to knot and more durable. If you're not sure about your knot-tying abilities,
  try tying this knot. It's simple to use and will maintain the magnet in place
  even when the magnet is not in place.
