Also, I have yet to get a single shall shell to drop as of yet. I am leveling my DRK and been killing these for a while. I have probably killed about 40-50 and have yet to get a shall shell to drop.
Water is basically useless. I mean it cost more MP than the amount of damage that it will do. And yes you can poison them, but you have to be like 10-15 levels higher than the mob itself and if you are trying to poison it then let me ask you this? WTF??
These are Water based mobs. It`s a fish, what did you expect? Therefore, it`s extremely resistant to Water based attacks and enfeebles. Those include Poison and, surprise surprise, Water.
YOu can't poison these guys. I have tried a million times and they consistently resist. I have not been able to poison one yet. So if you are attacking them you should only use either a dia or a blind or both.