ugh Fish dead!

[ALang]

Horrible disease, velvet is!! *shudder*
Hope that you will get through this OK.
Every time we hear about this disease, we just feel so badly for the people going through it.
Careful with the copper. Get all new tools for this purpose: nets, heater, bucket. Don't ever cross-contaminate your main tank with any remnants of copper, or you'd risk loosing more inverts, and the inability to ever use your main tank for anything other than a fish-only tank.
Good luck.