[greg78]

i have 1 way 4 u 2 find out if u do have copper in your system try using a poly filter in your sump or mecanical filteror just float a peice on the surface of ur tank the polyfilter changes colour when in contact with different metals and chemicals hope this solves your problem + u should float bags bags in tank 2 match temp then set up a drip 2 climatize the invert and lights off 4 a few hours