Originally Posted by
wpayton34
ok cool i just replaced both of my filters on my emperor 400 and all 4 are active carbon. I think i messed up by putting copper in the tank. my store told me to do it but i think i just killled all my lr
Copper will kill inverts, period.
How much live rock? I would be seriously demanding new rock from the store. The is also some concern that the copper will be absorbed in the rock and get leeched out at a later date to re-kill inverts.