9.1 Temperature
9.2 Alkalinity
9.3 Nitrogen
9.4 Calcium
9.0 Useful Table
9.1 Temperature
C F
20.00 68.00
20.20 68.36
20.40 68.72
20.60 69.08
20.80 69.44
21.00 69.80
21.20 70.16
21.40 70.52
21.60 70.88
21.80 71.24
22.00 71.60
22.20 71.96
22.40 72.32
22.60 72.68
22.80 73.04
23.00 73.40
23.20 73.76
23.40 74.12
23.60 74.48
23.80 74.84
24.00 75.20
24.20 75.56
24.40 75.92
24.60 76.28
24.80 76.64
25.00 77.00
25.20 77.36
25.40 77.72
25.60 78.08
25.80 78.44
26.00 78.80
26.20 79.16
26.40 79.52
26.60 79.88
26.80 80.24
27.00 80.60
27.20 80.96
27.40 81.32
27.60 81.68
27.80 82.04
28.00 82.40
28.20 82.76
28.40 83.12
28.60 83.48
28.80 83.84
29.00 84.20
29.20 84.56
29.40 84.92
29.60 85.28
29.80 85.64
30.00 86.00
9.2 Alkalinity
meq/l ppm KH
CaCO3
0.00 0.00 0.00
0.05 2.50 0.14
0.10 5.00 0.28
0.15 7.50 0.42
0.20 10.00 0.56
0.25 12.50 0.70
0.30 15.00 0.84
0.35 17.50 0.98
0.40 20.00 1.12
0.45 22.50 1.26
0.50 25.00 1.40
0.55 27.50 1.54
0.60 30.00 1.68
0.65 32.50 1.82
0.70 35.00 1.96
0.75 37.50 2.10
0.80 40.00 2.24
0.85 42.50 2.38
0.90 45.00 2.52
0.95 47.50 2.66
1.00 50.00 2.80
1.10 55.00 3.08
1.20 60.00 3.36
1.30 65.00 3.64
1.40 70.00 3.92
1.50 75.00 4.20
1.60 80.00 4.48
1.70 85.00 4.76
1.80 90.00 5.04
1.90 95.00 5.32
2.00 100.00 5.60
2.10 105.00 5.88
2.20 110.00 6.16
2.30 115.00 6.44
2.40 120.00 6.72
2.50 125.00 7.00
2.60 130.00 7.28
2.70 135.00 7.56
2.80 140.00 7.84
2.90 145.00 8.12
3.00 150.00 8.40
3.10 155.00 8.68
3.20 160.00 8.96
3.30 165.00 9.24
3.40 170.00 9.52
3.50 175.00 9.80
3.60 180.00 10.08
3.70 185.00 10.36
3.80 190.00 10.64
3.90 195.00 10.92
4.00 200.00 11.20
4.20 210.00 11.76
4.40 220.00 12.32
4.60 230.00 12.88
4.80 240.00 13.44
5.00 250.00 14.00
(1) (50) (2.8)
9.3 Nitrogen as Ammonia, Nitrite, Nitrate
N N NH3 NO2 NO3
ppm uM/l mg/l mg/l mg/l
0.000 0.000 0.000 0.000 0.000
0.005 0.357 0.006 0.016 0.022
0.010 0.714 0.012 0.033 0.044
0.015 1.071 0.018 0.049 0.066
0.020 1.429 0.024 0.066 0.089
0.025 1.786 0.030 0.082 0.111
0.030 2.143 0.036 0.099 0.133
0.035 2.500 0.043 0.115 0.155
0.040 2.857 0.049 0.131 0.177
0.045 3.214 0.055 0.148 0.199
0.050 3.571 0.061 0.164 0.221
0.055 3.929 0.067 0.181 0.244
0.060 4.286 0.073 0.197 0.266
0.065 4.643 0.079 0.214 0.288
0.070 5.000 0.085 0.230 0.310
0.075 5.357 0.091 0.246 0.332
0.080 5.714 0.097 0.263 0.354
0.085 6.071 0.103 0.279 0.376
0.090 6.429 0.109 0.296 0.399
0.095 6.786 0.115 0.312 0.421
0.100 7.143 0.121 0.329 0.443
0.15 10.71 0.18 0.49 0.66
0.20 14.29 0.24 0.66 0.89
0.25 17.86 0.30 0.82 1.11
0.30 21.43 0.36 0.99 1.33
0.35 25.00 0.42 1.15 1.55
0.40 28.57 0.49 1.31 1.77
0.45 32.14 0.55 1.48 1.99
0.50 35.71 0.61 1.64 2.21
0.55 39.29 0.67 1.81 2.44
0.60 42.86 0.73 1.97 2.66
0.65 46.43 0.79 2.14 2.88
0.70 50.00 0.85 2.30 3.10
0.75 53.57 0.91 2.46 3.32
0.80 57.14 0.97 2.63 3.54
0.85 60.71 1.03 2.79 3.76
0.90 64.29 1.09 2.96 3.99
0.95 67.86 1.15 3.12 4.21
1.00 71.43 1.21 3.29 4.43
1.50 107.14 1.82 4.93 6.64
2.00 142.86 2.43 6.57 8.86
2.50 178.57 3.04 8.21 11.07
3.00 214.29 3.64 9.86 13.29
3.50 250.00 4.25 11.50 15.50
4.00 285.71 4.86 13.14 17.71
4.50 321.43 5.46 14.79 19.93
5.00 357.14 6.07 16.43 22.14
5.50 392.86 6.68 18.07 24.36
6.00 428.57 7.29 19.71 26.57
6.50 464.29 7.89 21.36 28.79
7.00 500.00 8.50 23.00 31.00
7.50 535.71 9.11 24.64 33.21
8.00 571.43 9.71 26.29 35.43
8.50 607.14 10.32 27.93 37.64
9.00 642.86 10.93 29.57 39.86
9.50 678.57 11.54 31.21 42.07
10.00 714.29 12.14 32.86 44.29
(1) (1000/14)(17/14)(46/14)(62/14)
9.4 Calcium
Ca CaCO3 dH
mg/l ppm
0.00 0.00 0.00
5.00 12.50 0.70
10.00 25.00 1.40
15.00 37.50 2.10
20.00 50.00 2.80
25.00 62.50 3.50
30.00 75.00 4.20
35.00 87.50 4.90
40.00 100.00 5.60
45.00 112.50 6.30
50.00 125.00 7.00
55.00 137.50 7.70
60.00 150.00 8.40
65.00 162.50 9.10
70.00 175.00 9.80
75.00 187.50 10.50
80.00 200.00 11.20
85.00 212.50 11.90
90.00 225.00 12.60
95.00 237.50 13.30
100.00 250.00 14.00
110.00 275.00 15.40
120.00 300.00 16.80
130.00 325.00 18.20
140.00 350.00 19.60
150.00 375.00 21.00
160.00 400.00 22.40
170.00 425.00 23.80
180.00 450.00 25.20
190.00 475.00 26.60
200.00 500.00 28.00
210.00 525.00 29.40
220.00 550.00 30.80
230.00 575.00 32.20
240.00 600.00 33.60
250.00 625.00 35.00
260.00 650.00 36.40
270.00 675.00 37.80
280.00 700.00 39.20
290.00 725.00 40.60
300.00 750.00 42.00
320.00 800.00 44.80
340.00 850.00 47.60
360.00 900.00 50.40
380.00 950.00 53.20
400.00 1000.00 56.00
420.00 1050.00 58.80
440.00 1100.00 61.60
460.00 1150.00 64.40
480.00 1200.00 67.20
500.00 1250.00 70.00
(1) (100/40)(56/400)
