Originally Posted by
crimzy
http:///forum/post/2738788
Actually this is not true, (no offense Bang). An iodine deficiency can lead to several conditions in your fish. One of which is goiter... I recently treated my ray that was suffering from goiter with, among other things, iodine.
I've read that iodine should be at approximately 0.5 -0.7 (forgot what units).
Fish don't get their Iodine from the water, they get it from their food. I stand by by statement that there is no need to dose Iodine in a FOWLR.
Are you sure about the levels you listed or did you possible mean somewhere around 0.06ppm?
** edited - Let me restate to say MOST fish, I really don't know anything about Sharks & Rays so I'll have to take your word for it.