Elementi chimici in acquario
|
pH
|
% NH4 (Ammonio)
|
% NH3 (Ammoniaca)
|
6.00
|
99.95
|
0.05
|
6.10
|
99.93
|
0.07
|
6.20
|
99.91
|
0.09
|
6.30
|
99.89
|
0.11
|
6.40
|
99.86
|
0.14
|
6.50
|
99.83
|
0.17
|
6.60
|
99.78
|
0.22
|
6.70
|
99.73
|
0.27
|
6.80
|
99.65
|
0.35
|
6.90
|
99.56
|
0.44
|
7.00
|
99.45
|
0.55
|
7.10
|
99.31
|
0.69
|
7.20
|
99.14
|
0.86
|
7.30
|
98.91
|
1.09
|
7.40
|
98.64
|
1.36
|
7.50
|
98.29
|
1.71
|
7.60
|
97.86
|
2.14
|
7.70
|
97.32
|
2.68
|
7.80
|
96.65
|
3.35
|
7.90
|
95.81
|
4.19
|
8.00
|
94.79
|
5.21
|
Ossigeno disciolto in rapporto alla temperatura
Ossigeno Grammi/litro
|
Temperatura
|
10.9
|
10
|
9.8
|
15
|
8.8
|
20
|
8.7
|
21
|
8.5
|
22
|
8.4
|
23
|
8.3
|
24
|
8.1
|
25
|
8.0
|
26
|
7.9
|
27
|
7.8
|
28
|
7.6
|
29
|
7.5
|
30
|
Correlazione tra pH, kH e Anidride carbonica
KHPH
|
6.0
|
6.2
|
6.4
|
6.6
|
6.8
|
7.0
|
7.2
|
7.4
|
7.6
|
7.8
|
8.0
|
0.5
|
15
|
9.3
|
5.9
|
3.7
|
2.4
|
1.5
|
0.93
|
0.59
|
0.37
|
0.24
|
0.15
|
1.0
|
30
|
18.6
|
11.8
|
7.4
|
4.7
|
3.0
|
1.86
|
1.18
|
0.74
|
0.47
|
0.30
|
1.5
|
44
|
28
|
17.6
|
11.1
|
7.0
|
4.4
|
2.8
|
1.76
|
1.11
|
0.70
|
0.44
|
2.0
|
59
|
37
|
24
|
14.8
|
9.4
|
5.9
|
3.7
|
2.4
|
1.48
|
0.94
|
0.59
|
2.5
|
73
|
46
|
30
|
18.5
|
11.8
|
7.3
|
4.6
|
3.0
|
1.85
|
1.18
|
0.73
|
3.0
|
87
|
56
|
35
|
22
|
14
|
8.7
|
5.6
|
3.5
|
2.2
|
1.4
|
0.87
|
3.5
|
103
|
65
|
41
|
26
|
16.4
|
10.3
|
6.5
|
4.1
|
2.6
|
1.64
|
1.03
|
4.0
|
118
|
75
|
47
|
30
|
18.7
|
11.8
|
7.5
|
4.7
|
3.0
|
1.87
|
1.18
|
5.0
|
147
|
93
|
59
|
37
|
23
|
14.7
|
9.3
|
5.9
|
3.7
|
2.3
|
1.47
|
6.0
|
177
|
112
|
71
|
45
|
28
|
17.7
|
11.2
|
7.1
|
4.5
|
2.8
|
1.77
|
8.0
|
240
|
149
|
94
|
59
|
37
|
24
|
14.9
|
9.4
|
5.9
|
3.7
|
2.4
|
10
|
300
|
186
|
118
|
74
|
47
|
30
|
18.6
|
11.8
|
7.4
|
4.7
|
3.0
|
15
|
440
|
280
|
176
|
111
|
70
|
44
|
28
|
17.6
|
11.1
|
7.0
|
4.4
|
20
|
590
|
370
|
240
|
148
|
94
|
59
|
37
|
24
|
14.8
|
9.4
|
5.9
|
Tossicità di alcune sostanze
Nitrati |
> 100-200 mg./litro |
Nitriti | > 1,0 |
Ammonio (pH > 7) |
> 1,0 – 2,0 mg./litro |
Rame |
> 05 – 01 mg./litro |
Cloro |
> 25 mg./litro |
Valori riscontrati in biotopi africani
Lago Malawi |
Lago Tanganica |
Lago |
Fiumi torrenti |
|
PH |
7.7-8.8 |
7.5-9.2 |
7.1-9.0 |
5.5-6.5 |
GH |
4-6 |
7-11 |
– |
>1 |
KH |
6-8 |
16-18 |
– |
>1 |
Conduttivita? |
210-335 |
606-620 |
98-145 |
10-20 |
Temp. superficie |
24-29 |
24-29 |
24-29 |
24-26 |
Valori riscontrati in un tipico fiume thailandese
<
|
Acqua alta |
Acqua bassa |
Acqua normale |
Temp. Aria °C. |
31 |
29 |
30 |
Temp. Acqua °C. |
25 |
26 |
26 |
Condutt. mS-cm1 |
2521 |
2723 |
2622 |
pH |
6.3 |
5.6 |
5.5 |
gH |
0.15 |
0.08 |
0.17 |
Capacita? Acidif. |
0.11 |
0.15 |
0.15 |
kH (Ca.Ac.X2,8) |
0.31 |
0.42 |
0.42 |
Redox mV |
260 |
235 |
245 |
CO2 |
8.25 |
14.3 |
13.5 |
O2 |
6.0 |
5.5 |
6.0 |
Ca |
0.8 |
0.6 |
0.69 |
Mg |
0.3 |
0.23 |
0.3 |
K |
1.62 |
1.35 |
1.65 |