Originally Posted by BEWarren
I read a post about heating the temperature up to 84 degrees for 2 weeks to kill off the ich - is this effective? Any other options?
That is probabley one of the worst myths in the SW
hobby concerning marine ich. It has absolutely no affect on interupting it's life cycle but rather speeds it up. The optimum temperature for C. irritans
to reproduce is actually 86°. All it will accomplish is to infect the fish faster. Any temp required to kill the parasite would also kill the fish host in the process.
The best method of treatment would be to set up a proper >>QT
<< . Normally I would also suggest hyposalinity as an option but your tanks level of infestation is probabley quite high and the clown itself may not have the time required. Once the QT is up and running, start treatment with copper, preferabley Cupramine by Seachem. It is very effective but does require the Seachem copper test to be monitored properly.
In order for the main tank to free itself of the ich problem, it must remain fallow for at least 4 weeks. The invertebrate animals can stay in the tank as they cannot feed the problem, only the fish are the concern. Never rely on cleaner fish or shrimp to keep the tank free of problem parasites. Only through QT-ing all new additions for 4 weeks prior to introduction to the main tank can you prevent future problems.