Help, sick fish maybe?

[Seafan]

Originally Posted by zoaElite

Possible case of marine velvet, could you get us some better photos? If it is this is something you will have to treat urgently.

Do the fish almost look like there coated in flour?

Not really too likely it is marine velvet as the tank nor the fish have ever been up to full salinity or even close to it by my understanding anyways.
http://www.wetwebmedia.com/brackishs...racsystems.htm
quote from above article "However, because brackish water is generally hostile to both freshwater and saltwater parasites, things like whitespot and velvet are actually very rare in brackish water aquaria."

I'm not saying monos and brackish fish can't get salt water diseases or even fresh water, but they must be living in a suitable environment for the parasite.