Tests/Parameters are off?

[A320 FO]

Did a water change today (with Coral Pro Salt) and tested my parameters afterward. ALk, Ca, and Mg are all low. Added one full measuring cap (30ml) of ESV Ionic part 1 and 2. Alkalinity barley rose and Ca and Mg just a little. Im wondering if my Coral Sea test kit or the Dosing supplement is off/expired. Both are about one year old. Any thoughts?

 

[jmadison]

Tank size? Water change size? What were readings before and after? Time waited before testing after waterchange?

 

[AZBigJohn]

The Coral Sea reagents usually have expiration dates on the containers. Even if not expired, it might be worth having a fellow reefer test to compare.

 

[A320 FO]

Thanks, I checked the dates. Didn't think to look for that! They are good till 9/16 I have someone thats going to double-check my readings later this week.