How do you remove copper?

[1journeyman]

Originally Posted by boozzbro
well if you have a 100 gallon tank it would take you about 4 months if you do a 10% water change each week if 10 ppm is trapped in the live rock and you dose in 100 ppm of copper. so it theoretically wont take too long.
That's assuming copper immediately leaves the live rock and substrate. From what I've read it does not behave that way.

 

[boozzbro]

no thats assuming a diffusion coefficient of .2 so only 20% of the copper leaves the rock each change after you remove the copper dissolved in the water.
On a related noted i was under the impression that if you have live rock you shouldnt be dosing copper anyway becasue it kills the cirtters in the live rock. is that not true?