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Table 1
Water quality parameters (mean ± SE) during the 56-day experimental period.
| Parameter | T1 (1:1) | T2 (3:7) | T3 (7:3) |
|---|---|---|---|
| Temperature (°C) | 21.5 ± 1.7 | 21.6 ± 1.8 | 21.8 ± 1.6 |
| Dissolved oxygen (mg/L) | 7.2 ± 0.3 | 7.1 ± 0.4 | 6.9 ± 0.5 |
| pH | 7.5 ± 0.2 | 7.4 ± 0.3 | 7.3 ± 0.3 |
| Total ammonia nitrogen (mg/L) | 0.026 ± 0.005a | 0.031 ± 0.006a | 0.042 ± 0.008b |
| Nitrite-nitrogen (mg/L) | 0.006 ± 0.002 | 0.007 ± 0.002 | 0.009 ± 0.003 |
| Total alkalinity (mg/L as CaCO3) | 52.4 ± 4.1 | 53.2 ± 3.8 | 51.8 ± 4.5 |
| Total hardness (mg/L as CaCO3) | 42.6 ± 3.5 | 43.1 ± 3.2 | 42.8 ± 3.7 |
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