You can't. You have to trade it from quartz or crystal version.
You can catch a mantine by catching 2 remoriads and 2 octillery in the marine challenge.You can catch mantine there as well but I have not succeeded yet).
catch a magikarp,goldeen,remoraid
You have to catch a Mantine. The way you catch a Mantine in to catch 2 remoraids and 2 octilley.
You catch it at the marine capture challenge at Summerland. You will be looking for a Mantine after you have caught:2 Remoraids and 2 octillery
You cannot get mantine in firered only emerald and colosseum can.
go to the ledge and it will say yes or no
that Pokemon is not in Pokemon ranger, Pokemon ranger shadows of almia, or Pokemon ranger guardian signs
If you play at firered, OF COURSE there is no mantine, because Mantine is at Pokemon leaf green
Mantine is a Water and Flying type pokemon.
Mantine sounds like Manta, and Mantine is a manta-ray shaped Pokemon.
Skuntank
You do not catch deoxys in Pokemon ranger shadows of almia.
you have to trade it from Pokemon ranger