The tank has been set up now for a month. I do water changes and keep that stuff up. I have coral too. I have a heater, a protien skimmer, I have a whisper 60 for current, and a powerhead. My water parameters are as follows:
Nitrate- ~10
Nitrites- 0
Alkalinity- ~300
pH- ~8
Salinity- 1.023
Temp- 83 degrees F
The weird this is it was just the fish that died. Everything else is still doing fine and showing no signs of anything.