1. Goldfish can live incredibly long periods of up to 25 years.† You should plan accordingly when you purchase a goldfish.
2. You must always treat the water in the aquarium before attempting to place fish.† If you fail to treat the water the fish can die from the condition of the water.
3. You should keep the temperature in your aquarium constant.† Constant change in the aquarium can be dangerous† for the fish in your aquarium.† Keep a quality heater and accurate thermometer to ensure that the water stays stable for the aquarium.