I'm trying to help someone out here so anyone who can answer a.s.a.p. He bought a fish from his LFS and brought it home and added fish/water to his tank. (no doggin he alreadys knows his mistake) Only to find out that the LFS keeps copper in all their tanks. He said it amounted to about 4 cups of water. It's a 55g reef tank. What can he expect?
So far I've suggested he take a sample of his water and have it tested for copper and that only time now will tell.