malachite blue or aqua nova?

[csmfish]

I just read malachite has copper!? I had may angel in copper and not sure if thats the problem with it breathing heavy. Either way, I want to administer new water, lots of air and malachite, but, I see it has copper in it???

Now what?? AquaNova says it helps with heavy metals but I dont know if it helps the oxygen in the blood blood like malachite? Confused????