Complex sentence: The ram cichlid is popular in the tropical freshwater, community aquarium, although it is not necessarily the easiest cichlid to maintain in many situations, because the species is often kept with other fish that are more assertive, aggressive or overly active.
Split into simpler sentences: The ram cichlid is a popular cichlid for the tropical freshwater, community aquarium although it is not necessarily the easiest cichlid to maintain in many situations. This is because the species is often kept with other fish that are more assertive, aggressive or overly active.