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Post by Carl on Dec 14, 2019 11:38:58 GMT -5
I have updated this popular article from the AAP Library: www.americanaquariumproducts.com/Aquarium_Ich.htmlExcerpt: "Copper is still the most effective medication for treatment of Marine Ich/Cryptocaryon I have found for moderate to serious infestations. Unfortunately it is NOT AT ALL SAFE for ANY invertebrate and can also add to the stress of fish dealing with a serious Cryptocaryon infestation that it increases fish death. As well, removing many copper treatments such as Mardel CopperSafe is often difficult from tanks with coral sand, rock, etc. since these copper solutions are readily absorbed and then slowly leech out. This results in the aquarium keeper's inability to add back delicate invertebrates for some time after finishing treatment (often months).
As an alternative, SeaChem Cupramine is safer for the fish, and is much more easily removed once finished with treatment simply with carbon. However, Cupramine also often requires more dosing and is less stable then Copper Safe. Be careful with any chelated copper product (such as Copper Safe), as while very stable, these can often destroy your bio filter and build up quickly to toxic levels.
My suggestion if you are thinking of copper for a serious infestation of Crptocaryon, especially when an isolation/hospital tank is available is to start with AAP Marex combined with AAP Greenex which often will knock it down much more quickly than any copper treatment (with less stress to fish), but has lower long term effectiveness. Then after spots are gone, to run carbon and change water to remove AAP Marex and then treat with AAP/SeaChem Cupramine"
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