What attack spells work under water?

[JonBrave]

Not that it matters (to anyone other than me), but when I posted my "warning" smilies I wasn't meaning that the lightning underwater couldn't be done/controlled, I was thinking that everyone all over the place would get electrocuted! Having been taught not to mix electricity with water. Some Googling later, I think it would dissipate quickly, though the fact that we are talking sea water (presumably) does seem more worrying for the little critters....