What invert is the most sensitive to copper?

[wooden_reefer]

I have 300 pounds of live rock frrom Craigslist of unknown history in regard to copper use.

I want to know if there is a common species well-known to be very sensitive to copper to see if it thrives with this rock I have.

If you know of a few common species that are well-known to be extremely sensitive to copper, please name them.

Thanks

 

[gweston]

Unsure, but if you cycle it for a while and test for copper using a quality test kit.. it may help alleviate any fears.

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[gojk]

Cycle it with poly filters inline. If it turns blue, they are leaching copper. Most test kits do not test to a low enough level to know if it will cause any problems with inhabitants.

 

[billsreef]

What's growing on it now? Any sponges, worms, snails, etc.?

 

[Paul B]

Urchins are used to test water quality as they are quite sensitive but I have found clams to be more sensitive.

 

[wooden_reefer]

What's growing on it now? Any sponges, worms, snails, etc.?

It is still all dry.

 

[billsreef]

Urchins are used to test water quality as they are quite sensitive but I have found clams to be more sensitive.

It's the larvae that they use for all those biassays.

It is still all dry.

Ahh, formerly live rock. I'd go for getting it into some water and letting it cure. After curing, try a few snails and see how they do. Though I'd do a quick copper test to rule out obvious copper levels first.

 

[wooden_reefer]

It's the larvae that they use for all those biassays.



Ahh, formerly live rock. I'd go for getting it into some water and letting it cure. After curing, try a few snails and see how they do. Though I'd do a quick copper test to rule out obvious copper levels first.

cheap Cu test kits will never detect this minute level of copper.

I think I will acid bath the rock and then test it out with species that are known to be xtremely sensitive to cu, for a few months, before I sink in hundreds of bulks for livestock.

What cheap test animal should I use? This is the question.

 

[Wills612]

I would get a cheap cleaner shrimp. Maybe some cuprisorb if u have reason to believe there was copper involved. I believe it changes colors as it absorbs it.

 

[Paul B]

It's the larvae that they use for all those biassays.

Ah Bill, Uni. I call that lunch

 

[billsreef]

cheap Cu test kits will never detect this minute level of copper.

But it will at least rule out any levels high enough to determine that doing any sort of bioassay would simply be a waste of time and some critters life

Ah Bill, Uni. I call that lunch

:thumbsup:

 

[jerpa]

What cheap test animal should I use? This is the question.

And the answer

After curing, try a few snails and see how they do. Though I'd do a quick copper test to rule out obvious copper levels first.

 

[wooden_reefer]

If a lot of copper is constantly leached out, there will not be deposit at all.

There will not be a lot of copper leaching out.

If there is a problem with dissolved copper in the water, it has to be due to some change that causes the copper to leach out from the deposit.

The problem could be direct contact with deposited copper.

 

[KCombs]

^ ditto to all the above....
I caught h#ll trying to rid my rock of copper....
finally only repeated tries with cuprisorb and a polyfilter removed it....(and yeah like paul said, the fact urchins lived confirmed its removal)

but to add to more data for your question, it seemed ceriths & narssicus snails dropped like flies until all the copper was gone...the coral banded shrimp & turbos seemed to deal with it

 

[wooden_reefer]

"yeah like paul said, the fact urchins lived confirmed its removal"

This is the sort of answer that I have in mind.

Thanks

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