How to Keep Zebrafish? A Detailed Guide to Sexing Males and Females and Their Lifespan

Zebrafish get their elegant name because when they swim in schools they look like a herd of zebras galloping across the African savanna. They are often used to monitor water quality conditions, and they are also a relatively easy fish to keep. So how exactly do you keep zebrafish? How do you tell males from females? How long is their lifespan? Today let us learn about it together.

How do you keep zebrafish?

1. Oxygen

In fact, keeping zebrafish has very high environmental requirements. The need of zebrafish for dissolved oxygen in the water mainly depends on body size, activity level and temperature, and zebrafish themselves are very small in size, so their demand for oxygen is greater than that of larger fish. Generally, an oxygen pump should be kept running for a long time.

2. Water quality

For fish to grow healthily, water quality is also key. In freshwater fish, ammonia is excreted mainly through secretion by the epithelial cells of the gills, while feces contain a small amount of ammonia. At the same time, decaying plants in the water also break down to produce ammonia, and this substance damages water quality and affects the health of the fish. Therefore, when keeping zebrafish, water changes need to be done frequently. Besides changing the water, you also need to promptly clean up the fish feces and uneaten bait. So how do you keep zebrafish? Water quality is a major key.

3. Feed

How do you keep zebrafish? Another key is feeding. Generally, adult fish are fed once to twice a day. Zebrafish usually have little resistance to bloodworms and frozen bloodworms, which are foods most tropical fish can accept, but for small fish, they may not yet be able to take them. You can choose to buy some tropical fish feed and grind it up with a wooden stick. In this way, small fish can eat it too. It is just that their growth rate is slower. Generally, feeding 1 to 2 times a day is fine. Each feeding should be finished within five minutes.

4. Disease prevention

Zebrafish have extremely strong vitality and generally suffer from few illnesses. When they do get sick, it is generally caused by these conditions: bacteria carried by live bait; illness caused by lack of nutrition; diseases caused by deteriorated water quality. Generally, these diseases cause the gills, tail and scales of zebrafish to fall off and rot, ultimately leading to the death of the zebrafish. When a fish shows signs of disease, it should be removed promptly, and the fish tank should be disinfected. An appropriate concentration of potassium permanganate combined with sodium chlorate solution can be used for soaking and disinfection.

How do you tell male from female zebrafish?

1. Look at the pectoral fins; the larger ones are male fish;

2. Look at the color; the ones with clear and vivid stripes are male fish;

3. Look at the body shape; the thinner and longer ones are male fish;

Zebrafish of different colors can be crossbred.

How long do zebrafish live?

The lifespan of zebrafish is not long. Under normal circumstances, the lifespan of zebrafish is two to three years. They are mainly distributed in the streams of Bangladesh, India, Pakistan, Myanmar and Nepal. They have been introduced to the United States, Sri Lanka, the Philippines, Mauritius and other places.