Effects of water pH on physiological parameters and color changes of Asian Bumblebee Catfish (Pseudomystus siamensis Regan, 1913)

The results have shown that the cumulative mortality ratio of Asian bumblebee catfish at the end of 24 h challenge was 100% at pH = 11, 70.83% at pH = 10, and 62.5% at pH = 3. No mortality of fish was observed at pH = 4, 5, 6, 7, 8, 9 after 24 h of the challenge.