Mandarin has a posion slime coating all over its body, hence no ick and other parasite and are sledom bother by other fishes.

So are you saying that they can't get ich? The only fish to not be able to get this? Huh?

yes they don't usually get ick because their slimy body coating

I *believe* eels, catfishes, etc. are also "ich-proof".

Same for dartfish (ie. firefish gobies). :mrgreen: