The Blue Dempsey, also known as the Electric Blue Jack Dempsey, is a popular freshwater fish known for its vibrant blue coloration and unique personality. They prefer a pH range of 7.0-8.0 and a temperature between 75-82°F (24-28°C). It is important to maintain a consistent water quality by performing regular water changes and filtration. They are carnivorous and should be fed a diet of high-quality pellets or frozen foods.

Blue Dempseys can be kept in pairs or with other semi-aggressive fish in a spacious aquarium with plenty of hiding places, such as rocks or plants. They are active swimmers and require a minimum tank size of 50 gallons. It is important to provide them with ample space and hiding places to reduce stress and aggression.

They are relatively hardy fish, but can be sensitive to poor water quality and disease. It is important to monitor their behavior and appearance regularly, and take action if any issues arise. Blue Dempseys are known to have a unique personality and may become territorial, so it is important to observe their behavior and make adjustments as necessary.

Overall, the Blue Dempsey is a beautiful and unique fish that requires proper attention to water quality, temperature, and diet. With the right care, they can live up to 10 years in captivity.