7/3/2026 test results:
● Dosing 5.0 ml/day AFR starting 6/26/2026. New AFR mix batch starts 7/3/2026.
● Tests are post-today's AFR dosing.
● Phosphate, nitrate tested before a.m. feeding.
○ Ca: 440 ppm (+25/7d)
(target: 400-450 ppm)
per Salifert titration
○ Alk: 6.7 dKH (+0.3/7d)
(target: 8-12 dkH)
per Salifert titration
○ Mg: 1,365 ppm (+225/7d)
(target: 1,250-1,400 ppm)
per Salifert titration (New test
kit 7/3/2026)
* Stay with 5.0 ml/d AFR.
○ pH: 8.1
(target: 8.1-8.4)
per API colorimetric
○ Salinity: 1.0251 SpG/ 34 ppt
(target: 35 ppt)
per TropicMarin hydrometer
○ Temperature: 79.9°F
(target: 73-84°F)
per (new 7/3/2026)ThermPro
digital meat therm.
○ Nitrate: 52.6 ppm (+0.9/7d)
(target: 5-50 ppm*)
per Hanna HR Checker
○ Phosphate: 0.47 ppm** (+0.09/7d)
(target: 0.06-0.3 ppm*)
per Hanna ULR Checker
** Add 1-1/2 tbsp RowaPhos to filter bag
in canister filter. 3 tbsp
recommended for reactor use to get
to 0.20 ppm, 2x for filter bag.
*
https://www.reef2reef.com/ams/randy’s-thoughts-on-nutrient-target-ranges.1087/
*** Add Rox 0.8 GAC, 1-1/2 tbsp (3 is recommended by
BRS) Replace in 2 weeks.
Last (6/26/26):
● Dosing 4.0 ml/day AFR starting 6/12/2026.
● Tests are post-today's AFR dosing.
● Phosphate, nitrate tested before a.m. feeding.
○ Ca: 415 ppm (-25/7d)
(target: 400-450 ppm)
per Salifert titration
○ Alk: 6.4 dKH (-0.3/14d)
(target: 8-12 dkH)
per Salifert titration
○ Mg: 1,110 ppm (-150/14d)
(target: 1,250-1,400 ppm)
per Salifert titration
* Increase to 5.0 ml/d AFR.
* Dose additional 1.0 ml AFR
immediately.
○ pH: 8.0 pre-dawn, 8.0 mid-day
(target: 8.1-8.4)
per API colorimetric
○ Salinity: 1.0255 SpG/34.4 ppt
(target: 35 ppt)
per TropicMarin hydrometer
○ Temperature: 79.6°F
(target: 73-84°F)
per Weber digital therm.
○ Nitrate: 51.7 ppm (-2.0/14d)
(target: 5-50 ppm*)
per Hanna HR Checker
○ Phosphate: 0.38 ppm (-0.19/14d)
(target: 0.06-0.3 ppm*)
per Hanna ULR Checker