fish dying (long Post)

[MitchM]

Glad to help. That's what this board's good for.

I would disregard the PH numbers for now if you're getting the same reading in newly made up salt water. Your kit could be out a bit.
I would concentrate on diluting the ammonia down as much as you can.
How much water can you change at a time?
Don't feed the fish as that will just cause them to produce more ammonia.