Besides regularly testing the water, these signs can tell you if you’re having too much ammonia in the fish tank as well, so be sure to pay attention to them: When the ammonia has damaged the fish’s gills, they’ll feel the need to swim closer to the surface of the water to gasp...
Mean ammonia-nitrogen, nitrite-nitrogen and nitrate-nitrogen were 0.51 ± 0.73 mg/L (max 2.9 mg/L), 0.04 ± 0.04 mg/L (max 0.22 mg/L) and 0.80 ± 0.48 mg/L (max 2.49 mg/l), while the mean dissolved oxygen was 11.1 ± 2.5 mg/L (min 5.0 mg/L). On March 11, 2021, the ...