Standard first questions are:
First a few questions :
How old is your tank ?
How did you cycle your tank and when?
What has changed in your tank (new livestock, additives, partial water change, etc.)
How much LR
, a/o LS
is in the tank?
Was the LR
cured ? (when)
What inhabitants do you have ?
What filter(s) are you running ?
What Power Heads are you running?
How are you making you salt water for PWCs?
What kind of H20 are you using ? Distilled , tap , RO
How often and how large are your partial water changes?
Are you using any additives?
What are your water parameters ?
(Specific Gravity / Salinity)
Measured with a refactometer or hydrometer (swing arm?)