Kalk Precip

[Beverly]

Took almost two hours to test the following on my three tanks this afternoon:

37g: (30% water change yesterday)

- temp - 78 F
- SG - 1.026
- nitrate - 0 ppm
- dKH - 8
- pH - 8.10
- magnesium - 1185 ppm
- calcium - 360 ppm

67g: (35% water change yesterday)

- temp - 79 F
- SG - 1.025
- nitrate - 0 ppm
- dKH - 8.5
- pH - 8.25
- magnesium - 1180 ppm
- calcium - 380 ppm

120g: (15% water change yesterday)

- temp - 79 F
- SG - 1.026
- nitrate - 0 ppm
- dKH - 8.5
- pH - 8.25
- magnesium - 1245 ppm
- calcium - 380 ppm

Overall, params look good except for low magnesium across the board. Would also like to increase pH in the 37g. Have not tried dripping kalk yet to see if it precipitates like it did last week after the water change. Will keep you posted.

Will use the Reef Chemistry Calculator to figure out how to adjust the magnesium:

http://home.comcast.net/~jdieck1/chem_calc3.html