Fish lifespans can average anywhere from one year to 20 years. The lifespans of aquarium fish vary greatly depending on the species.Know More
Usually, smaller fish have shorter lives. For example, bettas live for an average of two years, and killifish may only live for a year. On the other hand, larger fish lead longer lives. Loaches can live 10 years or longer. Goldfish vary in size depending on their habitat, but they can live for decades.
Most domestic fish do not live as long as they could. Improper care and poor environment usually lead to early death in many species. Although goldfish can live 20 years or longer, many fail to last a single year. Pet owners can increase the lifespans of their fish if they feed them properly and make sure their tanks stay clean. Tank size also plays an important role in lifespan. For example, goldfish do not do well in small tanks.Learn More
In captivity, freshwater angelfish typically live eight to 10 years, but they can survive for up to 15 years. Their hardiness and longevity makes them a popular fish in home aquariums.Full Answer >
The gender of male and female blue catfish can be determined by the distinctive humps that appear on the backs of the males between the dorsal fins and the head. The females are more streamlined and can reach any size, but the males start developing these distinctive humps once they reach 10 pounds. The males also have more rounded heads.Full Answer >
Fish do urinate. It may be hard to tell that fish pee, because they live underwater, but if a tank starts to smell like ammonia after not being cleaned for a while, this is actually because fish do urinate.Full Answer >
The pike cichlid is a torpedo-shaped fish that reaches approximately 7 inches in length. This fish is popular for use in aquariums. It can live for about 10 years with proper care.Full Answer >