Sharks
 

It would be cool if their was a Shark in the water. For if you were hiding in the water they could come and kill you. This would be cool and you can pull it in with the fishing rod and sell it if you get it to low hp. If it high HP it should break the fishing rod and give you all the materials back except for 1 part. And when you get it low and use the fishing rod chances are that it will come on land for you can kill it and sell it for money. Also the shark should swim like with the speed like twice of the fishies and it can eat fishies to.

You can also add that the more it eats the stronger it gets. The stronger it gets. Maybe more exp.

I can see the anger threads now

sharks would be good in deep water, so you can remove the thing that throws you back to shallow water, that way you can jump from your ship and maybe when it blows up you don't warp back to last dock, also if when ships blow up a few planks are remaining allowing some people to grab hold and use it to swim to safey before sharks attack.

A skill that can make you go in the dark water? But not that far in the dark blue?

How would you be able to deent yourself while swimming? You'd have to escape, which pretty sucks when you're, say, on your way to Hotaru...

Easy with the fish class to make more fishlike monsters...

Hm... what about a harpoon-NPC for self-defense which doesn't work for food-fishies? (too small or whatever)

Water battles! 'Nuff said.