Marine ick is certainly not something anyone of us wants to have to deal with. It was originally thought that Marine Ick only occurred in closed systems and was not present in the wild, and if so it was not present to such a degree that Marine Biologists encountered it on a regular basis.

To give you a few references you can review for both a better understsanding of this parasite (obligate) and some suggested approaches to deal with it, below are a number of links you can use to read up some more on this pesky fish pest :      Cryptocaryon irritans Ick Crypto in the Wild Bartelme Ick Part I Bartelme Ick Part II Bartelme Ick part III Bartelme Ick Part IV Bartelme Ick Part V of V