To rid the main tank of ich, leave it fishless for six weeks and the parasite will die off as it is unable to complete the life cycle without a fish to host it.
Remove all fish to a treatment tank and treat with hyposalinity or copper.
Hypo is the preferred treatment but I've found that even six weeks of hypo at 1.0075 doesn't always rid the fish of the parasite, (my achiles) and I had to use copper as a last resort. |