Aggression: Rainbow sharks can be territorial and aggressive, especially towards fish that share a similar body shape or coloration. African cichlids are also known for their territorial behavior and intraspecific aggression. Keeping these two types of fish together can increase the risk of conflict and injury.
Size and Diet: Rainbow sharks can grow up to 6 inches in length, while African cichlids vary in size depending on the species. Some larger cichlid species can reach up to 12 inches or more. This difference in size can make it difficult for the rainbow shark to compete for food and resources, and it may lead to malnutrition or even starvation for the rainbow shark.
Water Requirements: Rainbow sharks prefer slightly acidic water with a pH level between 6.0 and 7.0, while African cichlids prefer alkaline water with a pH level between 7.5 and 8.5. Mixing these two species can be challenging as it may require frequent adjustments to the water chemistry, which can be stressful for both fish.
Stress and Disease: The incompatibility of their habitats and aggression between them can lead to increased stress for both the rainbow shark and the African cichlids. Chronic stress can lower the immune system making the fish more susceptible to diseases and infections.
To ensure the well-being and health of your fish, it is generally better to keep rainbow sharks and African cichlids in separate tanks. This will allow them to thrive in their preferred water conditions and reduce the risk of conflict and aggression.