Tank is constantly getting ick

[ar0wan]

I have never used copper. If you ask me it's second only to Bleach.
It works by poisoning everything, with the idea that you remove it
before the 'strongest' (hopefully the fish) are killed too.

Yeah, no.
no thanks.
CU later

 

[Lupin]

Copper is the only thing that really *kills* ich. Copper sulfite based medications. Is there any reason you're not using it? Salt just helps the fish and the temperature just speeds up its life cycle, enabling them to get over it quicker. But copper has always done the job for me.

I disagree. Unless you dealt with salt-resistant strains of ich, salt should destroy the ich. If you dealt with salt-resistant strains of ich, you still have another alternative formalin, malachite green or both. That does not make copper as the only one that really kills ich.

Note: Salt and formalin do NOT mix.