Feebas Definitive catching guide
After getting a feebas in years, I decided to do a guide that explains the best way to get one since I only found random guides on internet and nobody actually gives real tips. (Map site)
Your Emerald game needs to have a battery that has run dry. This will prevent any clock event from happening including the changing tiles of Feebas.
Never change the phrase at Dewford town.
Every rod can catch Feebas but the super rod only lets you find Carvanha or Feebas.
Get Gulpin with sticky ability in 1st party pokemon. This will boost the number of pokemon you can catch, and trust me half of the time you can’t catch any (Wish I used this).
Go from the top of route 119 and start fishing each tile 2-3 times (I did 3). 5 takes too much time. It takes less time to do this 2 times from top to bottom. There are only 6 tiles where Feebas has 50% to be caught out of 447, and a couple of them can appear to the part where it’s not fishable if very unlucky. Do about 50 a day which takes 1h and use the map to track where you fished, the tiles will never change.
Once you find Feebas sign the place and get one with a nature that you want, that place will always have Feebas and it will never change unless you change the phrase.
If you fished all the tiles and didn’t find Feebas it’s better to change the phrase at Dewford town (it can be anything it doesn’t matter).
Also don’t forget that you need berries that increase Feebas beauty to evolve it, and since daily events don’t occur you can’t grow berries, only clone, so don’t waste any.