It's 'not' and 'electric' how dare you get this wrong shame on you lol jk your english is completely fine.
As for the pokemon for your team, they're both pretty solid I'm surprised Vinny hasn't mentioned Gyarados although between the two Kabutops would be a little stronger and would also balance your team a bit more than Galvantula, so if you're lucky you can get a dome fossil (I have 3 of them including the one I revived.....I swear it's the only fossil i ever get :,( ). So if you don't wanna go through the hassle of trying to find a dome fossil and train a kabuto from lv 1 then you should go for Galvantula