Goldfish tend to attack each other when a food source is scarce. Increased competition for dwindling food sources leads to a fight for the food.
Goldfish are omnivorous, so a balanced diet of meat and greenery should be available. A lack of either can lead to goldfish fights over what is present. In extreme cases of hunger, goldfish attack each other in order to consume the meat to make up for what their diet lacks. Being social creatures, pet goldfish identify with their owner and do not eat unless they are fed by a familiar face, so a lack of this element can also lead to starvation, which in turn creates fights.Learn More
Goldfish may die from chemical, nitrite, nitrate or ammonia poisoning. Lack of oxygen and food are other possible causes. Too much feeding, which causes constipation, may also lead to the demise of goldfish.Full Answer >
Goldfish hover near a shelter at the bottom of the tank for short periods throughout the night when sleeping. Goldfish don't have eyelids, so when sleeping it can appear that they are just being inactive.Full Answer >
Goldfish usually do best when fed two or three times per day. At each feeding, it is best to put a small amount of food in the tank. If the goldfish eats all the food within one or two minutes, a second helping of similar size can be given.Full Answer >
Goldfish are available for purchase from many different online sources. For example, Buy Goldfish Online sells a variety of fancy goldfish and ships next day air. Other online sources of goldfish include Live Aquaria, Live Fish Direct, Rain Garden Goldfish and The Carp Company, which delivers in the United Kingdom only.Full Answer >