Water Test Results

This page is dedicated to keeping a log of my tank water parameters. I admit, just like everyone else I tend to get lazy sometimes and don’t test everything. As a general rule when reefkeeping, Check PH, Alkalinity and Calcium at least once per week. I like checking salinity every other day (I’m paranoid) but if you have an Automatic Top off System (ATO) It will stay constant as long as you don’t remove water (Accliamating etc…)

So here are the latest test results for my reef tank:

Date
Temp
SG
pH
Alk (dKH)
Calcium (PPM)
PO4 (PPM)
Nitrate (PPM)
Nitrite (PPM)
NH3 (PPM)
Nov 29 2009 77 1.0265 8 325 0 0
Oct 22 2009 76 1.025 9 400
Oct 5 2009 76 1.026 7 380
Sept 16 2009 1.026 7 400
Sept 12 2009 76.5 1.026 7 325-350
Sept 3 2009 79.4 1.026 7 350
August 13 2009 79.9 1.026 8.1 9.5 0PPM
July 28 2009 79.1 1.025 9 400 0 0
June 29 2009
80
1.025
350
June 22 2009
79
1.025
8.0
9.0-9.5
330
0
0.20
0
0
June 14 2009
78
1.025
8.2
8.5
350
0
0.5
0
0
June 8 2009
80
1.024
8.5
330
June 5 2009
81
1.024
9.0
330
June 1 2009
8.5
May 29 2009
8.5
330
2.5

“-” Means the value was not tested on this date.

Optimal Parameters:

The following table depicts the optimum parameters for reef keeping. Although there are varying opinions on these. I have found the most success trying to match these:

pH 7.9 to 8.3 (Varies from day to night)
Temperature 78° F to 84° F
Alkalinity 8 – 11 dKH (2.86 to 3.89 meq/L)
Calcium 390 – 450 ppm
Magnesium 1350 – 1400 ppm
Phosphate 0 ppm (0.05ppm or less as target)
Ammonia 0 ppm
Nitrite 0 ppm
Nitrate 0 ppm (10 ppm or less as target)

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