On Route 119 (6 random spots to fish from, depending on the current Trendy Phrase in Dewford Town).
There is a boy in Dewford Town and he asks you what the "trendy phrase" is. You can say anything you want, but depending on what you say, the 6 spots change and shuffle. You should fish at least 3-4 times on every square on route 119 to find feebas. Once you find it, as long as you don't change the trendy phrase, you can keep fishing
Happy Fishing ;)
Go to Route 11? (I forgot the last digit, but it's the one with the Weather Center). Depending on what the phrase at the town hall in Dewford is (don't worry if you have no clue about this phrase -- you can still find it), Feebas will appear in only six tiles of water. Capture it with a Good Rod or a Super Rod. Keep in mind that those tiles still contain other Pokemon, so try a few times before moving on to the next one. It can take a long time if you're not lucky, so be prepared for about an hour or two of landing Carvahna while you wait for Feebas. You will need to use Surf in order to reach every fishing spot, so bring a water-type. Bringing a Cradily, or any other Pokemon with the Suction Cups ability, will also help you out a little bit. If you find it and accidentally defeat it, don't worry - you still know what tile to fish in, right? Just keep fishing more in that tile and another one should eventually show up. To evolve your Feebas, feed it lots of Pokeblocks, but only ones made with dry berries like Chesto!
You can't tell where a Feebas is in Pokemon Sapphire. The only way to get Feebas is to fish in a certain waterfall, and there are 4 spots where Feebas would be out of the whole river beneath and above the waterfall, and you have to use a Super Rod.
Go to Mt.Cornet and go to the lake where the it is nere the entrance to route 216 but it will take time.
You catch feebas in the four tiled waters in the bottom of Mt. Coronet.
go to fortree city where the river is and fish with a super rod... but in all of the areas.. there is only six blocks that feebas will be there and it changes every day...
You cannot find a Feebas on the game but you can find a Feebas on the Pokewalker Route Quiet Cave
you can find a feebas in route 118 and 119 but its hard to find
find it in seafoam islands contest if u win u get feebas
you will find feebas in the water of grass maps in pokemon vortex
U can find feebas in Route 119.
Feebas are tricky to catch you can only find them in certain floors in Mt. cornet.
in the water
you cant find it you have to evolve feebas
u can find feebas in 6 various places on route 119 near fortree city.
You can catch Feebas in Mt. Coronet on B2F on the north side. You can also find Feebas in atrainers party on route 222.
On the route southwest from fortree city you can use your fishing rods to capture feebas its super rare to find though.
You can catch a feebas on route 119.You need to have all 3 rods and a lot of patience.