copper removal

I have a 55 gallon salt water tank (no corals but I'm wanting to get some in the future). I got a powder blue tang about a month ago and I noticed he had ich a few weeks ago. I freaked out a bit not wanting to lose a $60 fish and got some copper treatment to get rid of the ich. Unfortunately I...

I couldnt find a gate valve so i put a brass one in for a few days till i could order one... OM.... within 2 days... all the corals were really fading... i thought it may have been oils... after looking online.. Copper leaching.... OM OM OM OM Brass, copper, rocks, sand, glass... the...