In Pokémon Ruby, Magikarp evolves into Gyarados at level 20. Magikarp that have been caught at a level higher than Level 20 will evolve the next time they level up as long as they're not holding an Everstone which is an item that prevents evolution.
Crobat doesn't evolve.
Lv20
Level 32.
Wooper will evolve at level 32.
40
Level 20.
Level 20.
Level 20
Magicarp evolves at level 20.
lvl 20 brudda
Magicarp evolves into Gyarados at level 20
Rhydon is not able to evolve in FireRed.
Electabuzz is not able to evolve in FireRed.
Magicarp evolvesw into gyarados at level 20
You evolve it at level 20
areodactl does not evolve:-)
Golduck does not evolve.