Randy Holmes-Farley
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Reef Chemistry Question of the Day #200
Natural seawater has roughly the following parameters at 35 ppt:
420 mg/L calcium
7 dKH (2.5 meq/L) alkalinity
1280 mg/L magnesium.
Let's imagine a typical coral reef aquarium with a mixture of different types of hard corals and coralline algae. Which of the following sets of elevated parameters is most likely to be dropped back to exactly the natural levels stated above thrugh calcification by these organisms?
A.
500 mg/L calcium
19.4 dKH
1286 mg/L magnesium
B.
500 mg/L calcium
11.4 dKH
1301 mg/L magnesium
C.
580 mg/L calcium
19.4 dKH
1307 mg/L magnesium
D.
470 mg/L calcium
20 dKH
1320 mg/L magnesium
Natural seawater has roughly the following parameters at 35 ppt:
420 mg/L calcium
7 dKH (2.5 meq/L) alkalinity
1280 mg/L magnesium.
Let's imagine a typical coral reef aquarium with a mixture of different types of hard corals and coralline algae. Which of the following sets of elevated parameters is most likely to be dropped back to exactly the natural levels stated above thrugh calcification by these organisms?
A.
500 mg/L calcium
19.4 dKH
1286 mg/L magnesium
B.
500 mg/L calcium
11.4 dKH
1301 mg/L magnesium
C.
580 mg/L calcium
19.4 dKH
1307 mg/L magnesium
D.
470 mg/L calcium
20 dKH
1320 mg/L magnesium