Live Fish Stock
While cichlid fish and oscar fish both belong to the same family, they can have very different temperaments and requirements. As such, it is generally not recommended to combine cichlid fish and oscar fish in the same aquarium.
Oscar fish are known for their aggressive behavior and can be territorial, especially during breeding season. They require a large aquarium with plenty of space to swim and hide, and are best kept with other large and robust fish species.
Cichlid fish, on the other hand, can also be aggressive and territorial, but there are many different species of cichlids with varying temperaments and requirements. Some cichlid species are more docile and can be kept with other fish, while others are highly aggressive and should be kept in species-specific aquariums.
In general, it is best to research the specific species of cichlids and oscars that you are interested in keeping to determine their compatibility and requirements. It's also important to provide plenty of hiding places and territory for each fish in the aquarium to reduce aggression and stress.