You need to give staryu a water stone.
Gulpin evolves into SWALOT at level 26; staryu evolves into starmie through the use of a water stone.
You require a Water Stone for it to evolve
Yes, it does evolve in Pokemon Ruby. It evolves at lvl 42.
lv. 27
ya mum
In lvl 30
at lvl 22 or 23
lvl. 18 to Vigoroth lvl. 36 to Slaking
yes he can evolve he evolves at lvl 40
electrike --lvl.26--> manectric
just raise it to lvl 25
Get Lairon To Lv42 and it will evolve into Aggron