Well thank you very much for the advice i did treat it with copper already with the live rock in it..... i hope thats not a problem the gobbie seems to be doing fine i recently added a naso tang to the QT tank i had to i got a great deal on him ... now im using copper safe brand it says to treat the water once a month is that true ..?? also after the 2 weeks of copper how much of a water change should i do before adding prozi pro ..?? Thank you in advance
problem with treating your tank with rock in it is that there is no guarantee that you are holding 0.5 mg/L or 1.5-2 ppm like copper safe states. some or most of the copper will be absorbed in sand/rocks thus making copper treatment useless.
I have personally never used copper safe brand and i am not sure how they maintain 1.5-2 ppm free copper in water which under normal conditions will be deadly. so i cant really comment on it until i find one of the chemists to look into it and tell me something precise.
Without a proper copper test kit you wont know what strength you are suppose to be holding and id rock is absorbing some of the copper then really your treatment is waste of time.
I would get a test kit and according to the Coppersafe recommendations try to hold the strength.
Regarding the length of the treatment for 1 month on single dose that stands true in coppersafe and cupramine both. Once required amount is dosed both meds recommend 4 weeks treatment without any changes or additional dosing unless performing water changes.
If QT is cycled properly a 4 week treatment without any water change should happen flawlessly.
Treatment term is 4 weeks on both meds so after 4 weeks i would do 4x 25% or 2x 50% either way try to get a 100% water change or do as many as you can and run carbon or cuprisorb to get all copper out of the system.
if i missed something please feel free to ask.