Hi all, I've a 300gallon fowlr tank. It was treated with copper before. What i want to ask is that can a stingray survive if it was previously treated with copper. The brand of the copper i used is cupramine.
Copper on rays
- Thread starter yUwEn
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@lion king I know you're the monster fish expert, any thoughts? 
Sharkbait19
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Have you done anything to remove the copper from the water/tank? Have you tested levels to see if they are still positive?
You can try and remove any copper in the rocks/sand using cuprisorb and poly filters.
I’ve heard similar to lion king’s comment from others: water changes with cuprisorb and poly filters seems to work (at least in some cases).
Some threads with examples:
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