Water parameters Treatments
T0 T1 T2 T3 T4 T5 T6
Temperature (ºC) 27.36± .0244 27.46± .0400 27.44± .0244 27.42± .0374 27.40 ±  0 27.40± .0316 27.42± .0374
pH 7.41± 0.3682 7.56± 0.4226 7.87± 0.5253 7.70± 0.4637 7.56± 0.4320 7.16± 0.2926 7.69± 0.4388
Specific conductivity (ms) 1.08± 0.0323 0.97± 0.0768 1.10± 0.0633 1.12± 0.0337 0.96± 0.0579 0.92± 0.0564 1.01± 0.0400
Dissolved oxygen (mgL-1) 6.00± 0.9985 5.95± 0.8962 6.28± 0.9578 5.90± 0.8165 6.26± 0.9239 6.34± 0.9293 6.40± 0.8854
Free Carbon dioxide (mgL-1) 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Total alkalinity (mgL-1) 41.80± .8602 43.00± .7071 47.40± .0640 43.40± .2884 44.80± .4967 43.20± .8000 46.20± .5297
Total hardness (mgL-1) 77.00± .9235 80.00± .3038 78.00± .1402 74.20± .4980 72.80± .5179 72.80± .2156 73.20± .6721
Ammonia-nitrogen (mgL-1) 0.03± 0.0088 0.06± 0.0259 0.11± 0.0514 0.06± 0.0267 0.06± 0.0259 0.03± 0.0125 0.08± 0.0285
Nitrate-nitrogen (mgL-1) 0.01± 0.0012 0.03± 0.0031 0.06± 0.0167 0.04± 0.0106 0.04± 0.0092 0.03± 0.0055 0.05± 0.0131
Nitrite-nitrogen(mgL-1) 0.01± 0.0017 0.02± 0.0014 0.03± 0.0022 0.02± 0.0014 0.02± 0.0014 0.02± 0.0019 0.02± 0.0014
Table 3: Water parameters of V. spiralis grown in different organic manures for 28 days.
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