The fully adult ruby ​​fish can grow 12-15 centimeters, and the ruby ​​fish is not very large. Under natural conditions, their lifespan is relatively long, lasting 5-10 years. But when raised in captivity, their lifespan will be shortened to about 4 years, and few individuals can survive more than 5 years.

How to raise ruby ​​fish

1. Water temperature: Ruby fish is a tropical ornamental fish and is suitable for living in water with a temperature within 20-26°C. If the water temperature cannot be guaranteed during breeding, they will grow poorly and suffer from various growth problems. So if you want to keep them well, you must pay attention to maintaining the water temperature. If necessary, a heating rod can be installed in the fish tank to maintain water temperature.

2. Feeding: Ruby fish have a relatively large food intake and need to be fed twice a day during breeding. But don’t let them eat too much when feeding, otherwise it will not be good for their growth. It is best to let them eat until they are 70-80% full every time.