Absolutely! I'll offer up whatever I can!Would love to hear more about your experiences using CP.
What diseases do you use it to treat for? How long does CP last in the water before it begins to degrade? Can you use a UV to remove CP from the water?
Also, do you use any light on the QT when treating with CP?
First off, we use it essentially as a preventative QT protocol for all new fish. So in essence its to prevent all of which you have listed in your original post. Most commonly though could be crypt if you wanted me to be specific.
As far as degradation, we haven't done much testing in that department. We typically do a 30 day treatment. After those 30 days we use carbon and/or water changes to rid the system of CP. None of our QT systems are running UV so I can't offer much help in that aspect unfortunately. I have also heard the possibility that it is light sensitive but we do run lights on each of the systems. the 240 gallon systems run low wattage t5, and our 750's run 400W metal halides with PC bulbs. While running the lights we notice no significant change in the CP levels.
Now for my personal feelings on CP...I think it is an awesome drug. It is surely effective..however, some fish are too intolerant of it so to me it is similar to copper in a way. Smaller reef fish (anthias, basslets, butterflies, etc.) I have had do great for the initial week to two weeks, look totally fine and eating one day, and dead the next. Our protocol suggests the minimum concentration necessary to be effective is 10parts. But I would like to experiment with a lower dosage for more sensitive species to see if it would yield a higher survivability.