Jack Dempsey

Jack Dempsey
Latin name:
(Rocio octofasciatum)

Care Level





Black, Blue, Clear, Green, Tan



Preferred Conditions

78-82° F, KH 5-12, pH 6.5-8.0

Avg. Max Size


Minimum Tank Size

55 gallons


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Insect Larvae & Salmon Recipe Fish Food
The Fluval Bug Bites Color Enhancing Fish Food for Tropical Fish is a highly rated product. The granules are designed to enhance the color of tropical fish, and many customers have noticed a significant improvement in the vibrancy of their fish’s colors. The food is made with high-quality ingredients and is easily digestible for the fish. Superior in terms of color enhancement. #1 Recommended Fish Food

The Jack Dempsey is a perfect addition to any freshwater aquarium due to its vibrant colors and active personality. It is an ideal fish for an experienced hobbyist, as it requires a dedicated and well-maintained habitat. An aquarium of at least 55-gallons should be chosen for the Jack Dempsey, with a fine sand bottom, rocks, and roots for them to hide among. Additionally, hardy plants should be used to divide the aquarium into territories, as the Jack Dempsey is an aggressive fish and may attack or consume any smaller fish that can fit into its mouth. With the proper setup and maintenance, these fish will bring life and energy to your freshwater aquarium.

The Jack Dempsey is a popular aquarium fish due to its vibrant colors and active behavior. It is important to identify the gender of the fish to prevent overpopulation in the tank. To ensure the health and longevity of the Jack Dempsey, it is paramount to provide the necessary water conditions. Neutral water with soft to medium hardness, a pH of approximately 7.0, and temperatures of 78-82°F should be maintained in order to create an optimal environment. Additionally, it is important to ensure that the tank is well-aerated to provide the fish with enough oxygen. With the right conditions, the Jack Dempsey will be able to breed successfully, with pairs laying up to 500 eggs in a single spawn. What’s more, they will continue to breed repeatedly once the fry have developed.

Jack Dempsey is a carnivorous fish and will eat most prepared and frozen foods, including freeze-dried bloodworms, tubifex, and ocean plankton, as well as live fish.