Putting a Pokemon to sleep will give you a better chance of catching it.
put them to sleep, or paralyze them
neither of them is better, they are both the same, but in diamond, you catch dialga, and in pearl, you catch palkia, and you can catch different Pokemon in each game for example: you can catch this Pokemon in diamond, but not pearl but: you can catch this different Pokemon in pearl, but not diamond
To catch Zapdos you have to go to the power plant in Pokemon blue you also might need lots of poke balls because zapados is really hard to catch also try and and put him to sleep or paralyze him or freeze him and lower down his health so its easier to catch him.
You can catch any legendary Pokemon with an ultra ball as long as you get their hp down and you have to have a lot of them. Try to put it to sleep or paralyze it to make the catch easier.
Simply weaken it to red HP paralyze it and use as many net balls as you can.
put them to sleep, or paralyze them
Get him down to 1 hp, confuse him, and then paralyze him. Then you might be able to catch him with a poke ball if you hack.
Weaken it to red HP, paralyze it with Thunder Wave, then throw lots of ultra balls, make sure you save before trying to get it.
Weaken it to red hp, paralyze it then start throwing a bunch of ultra balls.
Weaken it to red HP, paralyze it or make it sleep then use many ultra balls.
Weaken it to red HP, paralyze or make it sleep then use as many ultra balls as you can.
Catch better Pokemon
Catching Pokemon while fishing is the same as catching any other Pokemon in the wild.You want to weaken the Pokemon to red health (preferably) and use a Pokeball or variant to catch it. You could also paralyze or put the Pokemon to sleep to increase your chance of catching it.
You don't need a video on how to catch Pokemon. It is reletively simple. First, weaken it with your Pokemon's attacks, then throw a ball. Unless, you want to catch Kyogre. That is harder. If you want to catch Kyogre you need to give it a status condition (Paralyze, Sleep, Burn, Freeze etc.) and weaken it. Then throw an Ultra or Dusk Ball.
neither of them is better, they are both the same, but in diamond, you catch dialga, and in pearl, you catch palkia, and you can catch different Pokemon in each game for example: you can catch this Pokemon in diamond, but not pearl but: you can catch this different Pokemon in pearl, but not diamond
Weaken it to red hp, paralyze it then use many net balls or ultra balls.
Yes. Just lower its HP as much as you can (paralyze it or put it to sleep, if possible) and attempt to catch it using Ultra Balls.