sorry, i was out of town and wouldn't have been able to ship any CP out until i got back. sorry for not checking the forums on a regular basis... i was on family vacation.
if brook, formalin or CP would be your best bet. but formalin breaks down very quickly, so typically once the seal on the bottle has been broken, it is probably only effective 3 or 4 months max. most brands that contain formalin doesn't have enough to be effective, but they will help in prolonging the life of your fishes. on Nano Reef, someone bought a SA snowflake and is experiencing the same, it wiped out his tank. here's the problem, it can be brook or velvet and both these disease wipe out quickly. with velvet, copper or CP is your answer. with that said, this is why i switched to CP for quarantine since Apr2013 instead of copper because if brook comes into my QT system, copper would do nothing... and it did. your best bet is already what you are doing... but unfortunately from what i've read today, it maybe too late. if it is velvet, you would need to leave your tank farrow for 3 months as i've experience velvet reoccuring within a 3 month period and when i've talked to many breeders, several suggest the same exact time period, minimum 3 months no fish. for my own QT, i use 2 months minimum in CP before they are transferred to my display tank. i never mix shipments of fishes from different breeders,so outbreaks occurs, I know the source of where the disease came from. with CP, i have no guesswork of weather it is brook or velvet as it treats both. since using CP, i've had maricultured clownfish come in with brook, but no incident that the brook killed all the fishes within that shipment. if i get in 20 clownfishes from a breeder, i may loose 1 or 2 max when i see active brook occur.
yes, you purchased high end skimmers and t5 bulbs from me, i just don't advertise them as not to compete with LFS that use to not carry them, but are carrying them now, but i still have access to all equipment i have contracts with. i do have CP in stock and will be starting tomorrow, Friday 11/29 if you need any. we can discuss more what you can do if anything if you stopby.