[While Chihiro would love to help...that sort of thing just really isn't his cup of tea, unfortunately. Though he can answer the other portions of this video, at least.]

You might consider visiting Olivine City, if you haven't before. It's a very nice place, and it's near the beach...I'm sure you would be able to encounter a lot of water types there.

Also, um...I know a lot of people are already offering to help, but I'll listen to whatever Invidia has to say, too, if he would like.