Table 4. Water quality parameters during the study
| Treatment | Parameters |
| Salinity (‰) | Temperature (°C) | pH |
| A | 27–30 | 22–25 | 7.1–8.3 |
| B | 28–30 | 22–25 | 8.2–8.6 |
| C | 28–30 | 22–25 | 8.1–8.3 |
| D | 29–30 | 22–25 | 8.1–8.6 |
| E | 28–31 | 22–25 | 8.0–8.2 |
Treatment A, 25% horseradish leaf extract + 75% KW21; Treatment B, 50% horseradish leaf extract + 50% KW21; Treatment C, 75% horseradish leaf extract + 25% KW21; Treatment D, 100% KW21; Treatment E, 100% horseradish leaf extract.