Definition that contains freshwater fish
- cichlid freshwater fishes of tropical America and Africa and Asia similar to American sunfishes; some are food fishes; many small ones are popular in aquariums
- helleri freshwater fish of Central America having a long swordlike tail; popular aquarium fish
- xyphophorus helleri freshwater fish of Central America having a long swordlike tail; popular aquarium fish
- swordtail freshwater fish of Central America having a long swordlike tail; popular aquarium fish
- topminnow freshwater fish of Central America having a long swordlike tail; popular aquarium fish
- cichlid fish freshwater fishes of tropical America and Africa and Asia similar to American sunfishes; some are food fishes; many small ones are popular in aquariums