Hi All,
I have a 209G reef tank ( 10 years old) and use BRS 2-parts dosing of soda ash and and Ca chloride mix. I also dose Mg. I use trident analyzer to monitor all 3 parameters daily and control dosing. I can not get Alk and Ca stabilized. Alk goes high but Ca reduces. Then I stop dosing and then Ca goes crazy high and Alk drops. I have attached the trident results below. When I got Alk stabilized around 9.6 dkH then ca dropped to about 340. I checked calibration of trident against multiple other tests and numbers are OK.
Initially I was dosing about 50 ml Ca and 50 ml Soda ash and 50 ml Mg then I tried 70 ml daily . No matter what I do I can not get these stabilized. Due to this stress I lost many SPS colonies. I would appreciate any help or advice. Thanks
Tank size 210 g., Salinity 35 ppm, mainly SPS but very few left. I also use Carbon dosing. dose Vodka 18 ml per day.
My nitrite and Phosphate are high due to high feeding. Nitrite 10 ppm, Phosphate 1 ppm.
I have about 20 fish and feed them 5 cubes per day.

I have a 209G reef tank ( 10 years old) and use BRS 2-parts dosing of soda ash and and Ca chloride mix. I also dose Mg. I use trident analyzer to monitor all 3 parameters daily and control dosing. I can not get Alk and Ca stabilized. Alk goes high but Ca reduces. Then I stop dosing and then Ca goes crazy high and Alk drops. I have attached the trident results below. When I got Alk stabilized around 9.6 dkH then ca dropped to about 340. I checked calibration of trident against multiple other tests and numbers are OK.
Initially I was dosing about 50 ml Ca and 50 ml Soda ash and 50 ml Mg then I tried 70 ml daily . No matter what I do I can not get these stabilized. Due to this stress I lost many SPS colonies. I would appreciate any help or advice. Thanks
Tank size 210 g., Salinity 35 ppm, mainly SPS but very few left. I also use Carbon dosing. dose Vodka 18 ml per day.
My nitrite and Phosphate are high due to high feeding. Nitrite 10 ppm, Phosphate 1 ppm.
I have about 20 fish and feed them 5 cubes per day.


