Water-type Suggestions?

[QuantumPolagnus]

I am planning out another team for my Generation IV games and just noticed a complete lack of a water-type on the team.

I haven't played all the way through DPP (my then-copy of Platinum was buggy and I got rid of it, but haven't begun playing the new copy), so I'm rather unfamiliar with the Sinnoh Pokemon and I was wondering if someone would give me any tips on which one to pick.

Also, I've already trained a Milotic in RSE, so I don't want to train another one, unless you can convince me that any newer moves it has access to make it so much better.

Thanks!

 

[Kavidun]

My advice is catch a magikarp and EXP share it to Gyarados, but when Pal Park is available get your milotic back.

 

[candymancan]

Since you havent given out your team its hard to pick a water type for you. However i would use Kingdra

 

[DCM]

This could easily go in the simple questions thread