Digging this up because I’m having a similar issue. I’ve been having issues with my calcium climbing and mag going down as the month goes on.
I’ve been working with Neptune on it and after it happened again they wanted me to swap in a new set of reagents, reset the trident, do two tests and if within range calibrate. So I followed those steps and then tested my tank water with the trident.
Alk: 9.2
Calcium: 546
Magnesium: 1360
calcium was off over 100 points from where I thought it should be.
They told me to test the Trident calibration bottle with my salifert kits so I did.
Bottle label:
Alk: 8.25
Calcium: 455
Mag: 1170
Salifert tests of Trident bottle:
Alk: 8.3
Calcium: 350
Mag: 1180
Thinking I messed up I tested the Calcium again and got 360. Thinking my Salifert kit was bad I tested some Fauna Marin Reference solution I had on hand which was marked 422 calcium with my salifert kit and got 415.
so knowing my salifert kits looked ok I tested my tank water with them and got
Alk: 9.3
Calcium: 430
Magnesium: 1430
I then decided to calibrate the trident again but instead of doing the 455 from the label of the bottle as calcium I entered 350 since that’s what my salifert tested it at. After that I ran a trident test on my tank and got
Alk: 9.1
Calcium: 434
Magnesium: 1354
Magnesium is still off but calcium is reading what the Salifert kits and my experience with my tank tell me my calcium is.
anyway I sent all this info to Neptune and we’ll see what they say.
I’ve been working with Neptune on it and after it happened again they wanted me to swap in a new set of reagents, reset the trident, do two tests and if within range calibrate. So I followed those steps and then tested my tank water with the trident.
Alk: 9.2
Calcium: 546
Magnesium: 1360
calcium was off over 100 points from where I thought it should be.
They told me to test the Trident calibration bottle with my salifert kits so I did.
Bottle label:
Alk: 8.25
Calcium: 455
Mag: 1170
Salifert tests of Trident bottle:
Alk: 8.3
Calcium: 350
Mag: 1180
Thinking I messed up I tested the Calcium again and got 360. Thinking my Salifert kit was bad I tested some Fauna Marin Reference solution I had on hand which was marked 422 calcium with my salifert kit and got 415.
so knowing my salifert kits looked ok I tested my tank water with them and got
Alk: 9.3
Calcium: 430
Magnesium: 1430
I then decided to calibrate the trident again but instead of doing the 455 from the label of the bottle as calcium I entered 350 since that’s what my salifert tested it at. After that I ran a trident test on my tank and got
Alk: 9.1
Calcium: 434
Magnesium: 1354
Magnesium is still off but calcium is reading what the Salifert kits and my experience with my tank tell me my calcium is.
anyway I sent all this info to Neptune and we’ll see what they say.