corals dieing

[Ruth]

Gord - I have a spare bucket of Seachem reef salt and am going through Dawson tomorrow if you want to try a different salt brand.
IMO you should not be getting any nitrate from freshly mixed salt.

[ganowicki]

mg 1300 ppm,

I don't have ammonia, nitrite or calcium test kits.

[michika]

Any problems with heat fluctuations? Are you running carbon? After the water changes you mentioned, did you see an immediate improvement, or a decline in your tank over all?

[ganowicki]

no problems with heat fluctuations. i am running Chemipure carbon. I don't notice any immediate improvement or decline after a water change.

[michika]

How old is the system? Is it a barebottom system? I've heard of tanks getting wiped out because someone disturbed their old sand.

[mr_alberta]

Anything leaking electricity into the tank? Copper poisoning?