Have not tried trouble shooting this yet, but I have something funky going on. I currently dose BRS 2 part to my mix reef. I have them being auto dosed from my APEX DOS controlled by my trident. 3 weeks ago everything was staying very steady with Alk staying at 8.2 and Calcium staying in the area of 440. Over the last three weeks my Calcium has been steadily declining. Over the last three weeks my calcium has dropped from 440-450 to 380 (according to my trident). My Alk has stayed steady around 8.2. over the last 24 hours ALK dosed 41.2 and Calcium was at 44.4 but keeps dropping. I do not see any precipitation on any of my pumps or in my sump.
The only thing I can think of is to recalibrate my DOS when I get home. What else could be causing this drop?
Almost 2 year old system 100 Gallon total water Volume.
Salinity 1.025-1.026
PH 8.1-8.3
Alk 8.2 (BRS 2 Part)
Calcium 380 (BRS 2 Part)
Magnesium 1400 (have not had to dose at all)
Red Sea Trace Colors 2ml each once a week. (good on last ICP test in November)
Nitrate 3 (Nyos)
Phosphate .03-.05 (Hannah)
Small refugium, lit 12-12
Last water change was 3 December
The only thing I can think of is to recalibrate my DOS when I get home. What else could be causing this drop?
Almost 2 year old system 100 Gallon total water Volume.
Salinity 1.025-1.026
PH 8.1-8.3
Alk 8.2 (BRS 2 Part)
Calcium 380 (BRS 2 Part)
Magnesium 1400 (have not had to dose at all)
Red Sea Trace Colors 2ml each once a week. (good on last ICP test in November)
Nitrate 3 (Nyos)
Phosphate .03-.05 (Hannah)
Small refugium, lit 12-12
Last water change was 3 December
