The Red Arrowfish, also known as the Red Capybara, is a tropical freshwater fish, this fish is relatively easy to keep, the Red Arrowfish grows rapidly and requires a correspondingly large amount of space to live in, without adequate tank capacity these fish can experience health problems and a shortened lifespan, the Red Arrowfish requires a special diet to keep it healthy, requiring a high protein diet, such as small shrimp or earthworms, and if the proper diet is not provided, these fish may become ill or die.