In this episode, I speak to Dr Jessie Sanders about fish water quality and environment stress. Goldfish and Betta fish are two of the most commonly kept fish species in the world. Naturally, this means many exotic veterinarians see these pet fish in practice. One of the most important diagnostic tests we have to investigate further is a water quality test. Listen to this podcast to learn more about how to optimise aquariums systems, how to approach sources of fish environmental stress, how to effectively interpret the major water quality parameters and how to use this information to correct water quality problems.   Dr Jessie Sanders is a certified aquatic veterinarian through the World Aquatic Veterinary Medical Association and the Chief veterinarian of Aquatic Veterinary Services in California, USA. She is also a past president of the American Association of Fish Veterinarians. Dr Sanders is a regular speaker at veterinary conferences. She is also the author of a children's book series: Boo and Bubbles.