http://forum.square-enix.com/ffxiv/threads/31010-1206-Water-spells/page21
Originally Posted by Rukkirii
There aren't any water-based attack spells, but conjurers do control water-based spells. The break down of elements are as follows:
CNJ: Water/Wind/Earth
THM: Fire/Ice/Lightning
Also, there are no paralyze/poison/silence/absorb/slow and there aren't any plans to implement them before the launch of version 2.0. However, as we move forward, if it becomes absolutely necessary to utilize them, we will look into it.