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How long should they stay in the copper tank?
Does the time start once it reaches therapeutic levels or after the initial dose?
Ive read anywhere from 15-30 days.
AgreeSee, I look at that and see .25 on the money. Either way, a bit more is needed.
This method is theoretically possible but requires absolutely NO human error at all. No cross contamination, 100% therapeutic dose tested every day (your clock restarts if it's a hair below .5), etc. I've never successfully used 14 days but I'm sure it can be done.Reading up on the velvet treatment forum I see that if I have another clean tank to transfer them to I can keep them in the copper for only 14 days.
I do have a 20 gallon tank that I can move them too. I'll throw some cycled rock from my DT.
Here is the thread
As mentioned in “The short version”, if you only have one QT to work with leave the fish in CP or copper for one month before performing water changes/running carbon. This will ensure the fish has been protected from reinfection before removing the medication. However, if you can transfer the fish to a non-medicated holding tank (at least 10 feet away from the QT) for observation then you may do so just 10-14 days after CP/copper treatment has begun. So long as therapeutic levels were continuously maintained for the 10-14 day period. Transfer nothing but the fish, and even as little water as possible with the fish (like doing Tank Transfer Method). DO NOT lower the CP or copper level before transferring, as that is “the shield” protecting the fish from reinfection. Once transferred, your fish should have a “clean slate” in his new environment and have left behind all the velvet problems in the QT. Observe for at least 2 weeks before declaring your fish to be velvet free!
This method is theoretically possible but requires absolutely NO human error at all. No cross contamination, 100% therapeutic dose tested every day (your clock restarts if it's a hair below .5), etc. I've never successfully used 14 days but I'm sure it can be done.
You should still test every day and all of those things are still true but there's a small margin for error, still do your best to prevent.Ok, I'll stick to the 30 days then.
I'd love to hear someone successfully doing the 14 day method (other than humble and melyphr haha).