Trident Woes
My trident was way out of calibration. I used their calibration fluid, which I'm assuming was wrong. I had been dosing soda ash daily for about two months now, but my calcium was still on the high side, so I never worried about it.
CALCIUM
Ideally, I'd be around 440. I ran a Red Sea test and got a much much lower number
Trident: 470
Red Sea: 390
Way too different. I needed a tie breaker so I went out to the LFS and found a Salifert Calcium test.
Salifert: 415
I ran both the Red Sea and Salifert 3 times and got the same results each time. When BRS did their testing, Salifert read a little higher than red sea, so I think both of thos test kits are good.
I split the difference, and manually calibrated the trident to 400.
MAGNESIUM
My Red Sea magnesium was spot on with the trident (well, within 10ppm ), albeit they were both low at 1220 and 1228.
My goal is to get to 440 and 1350 over the next week. I set the dosing pumps to get me there in about 7 days. The trident should hopefully keep me updated on the progress.
Dosing / Testing Setup
Fairly standard. Neptune Trident and DOS. Got them on sale months ago.
My dosing containers are just mason jars with plastic lids. Way cheaper than the Neptune containers.
I was dosing neither calcium nor magnesium up to this point, but they now need it. I was able to look at the historical values and see the trendline down on the magnesium levels since I stopped water changes.