cupramine dangers in quarantine

[saltwater_pappy]

Good day everyone.
I am just finishing my first successful quarantine to reintroduce fish to my new 90G tank. Over the last 4 weeks they have been treated with prazipro and cupramine to ensure no saltwater ich. My next groups of fish will include a 6 line wrasse and dwarf angels. I have been told by the local fish store, that 6 line's and dwarf angels may not survive quarantine if treated with cupramine. do you know if there is any truth to this? If so, is there any other way to make sure I don't introduce ich to my display tank? Your input is greatly appreciated.

 

[Sk8r]

Don't use copper where contraindicated. Your store is accurate. You might hold the fish 8 weeks instead of four at full 1.025 salinity (normal for a reef) and if they don't break out in spots they're not likely to.

 

[wooden_reefer]

I have treated dwarf angels with straight copper to 0.25 ppm OK. I have used CopperSafe 30 years ago but have since used only straight copper to 0.25 ppm metallic.

While 8 weeks of observation against ich is significant in that ich outbreak later is unlikely, but if you view ich outbreak in reef DT as a calamity then unlikely is not good enough.

Whatever you do, prudent is to have very much enough nitrification bacteria standing by a few months after. Ghost feed the qt and don't take it apart too soon.


Ich outbreak in DT is the worst when the DT is close to fully stocked and you are just adding the last fish to DT, then ich. Then the fish bioload in QT would be the greatest.

Ich outbreak in DT is less of a calamity if you are prepared with enough nitrification bacteria to support all the fish in DT for 12 weeks of fallowing if your DT became infested with ich.

With enough active nitrification bacteria standing by, you have more options if ich breaks out in DT.