How Many Zebra Danios In A 29 Gallon Tank?

Around five zebra danios should be put together in a 29-gallon tank. Keeping fewer than five zebra danios in a tank can cause stress, loss of appetite, illness, and show aggression toward other tank inhabitants. Zebra danios are known as schooling fish and find comfort and safety in groups. 

Zebra danios are beautiful fish and are attractively striped with their signature zebra-patterned bodies. Zebra danios are favorite freshwater fish and are easy to take care of. Apart from this, they are fertile breeders.

How Many Gallons Do Zebra Danios Need?

Zebra danios can survive in tanks that are as small as 5 gallons. It is pivotal to remember that zebra danios are community fish, and sometimes they get over-active. However, these fish are suited to be in larger, over-busy aquariums.

Zebra Danios in Front of Plants

How Long Should I Cycle My 29 Gallon Tank?

The process of cycling usually takes approximately six to eight weeks. After about eight weeks, the ammonia, including the Nitrate levels, would be satisfactory.

What Are The Measurements Of A 29 Gallon Tank?

A 29-gallon tank weighs about 330 lbs. This size tank measures 30 inches wide by 12 inches deep by 18 inches high. It is a big tank and it needs a sturdy and solid stand to prevent it from being knocked over.

How Big Do Zebra Danios Get?

This popular freshwater aquarium fish is relatively small (about four centimeters [1.5 inches] long). It is known for its dark-blue and silvery horizontal stripes. Zebra danios take six weeks to grow to a size of one inch long.

What Is The Behavior Of Danios?

Danios are described as very hardy. They tolerate a variety of temperatures, including water chemistry. Danios are very active and fierce, yet they seldom injure other fish. Beginners would love danios since they are excellent fish for newly set up aquariums.

Zebra danios are very active fish. Other fish that go well with zebra danios include serpae, tetras, mollies, and swordtails. Keeping danios in at least a 10-gallon tank is highly recommended, yet more giant tanks are ideal for zebra danios. Speaking to an aquarium expert is advisable when you wish to buy any new fish for your aquarium.

How Do You Take Care Of Your Zebra Danios?

There are nine easy steps that you need to follow to care for your water danios. These steps are listed below.

  1. Choose the correct size of tank for your zebra danios. Zebra danios thrive in groups; the more significant the tank, the better.
  2. Always add gravel and plants. You can add a layer of gravel to the tank’s base while it is still dry.
  3. After adding the gravel to the dry tank, you add water.
  4. Make sure you set up the aquarium equipment correctly. You will require a filter, an air pump, an aquarium light, and a thermometer. These are the standard supplies you need to set up your aquarium.
  5. Ensure that the tank temperature is around 70 – 75 Fahrenheit. This temperature is preferred for zebra danios.
  6. Zebra danios enjoy water movement; therefore, it is vital to make sure that there is water movement from the water filter.
  7. Before you add any fish, it’s pivotal to “cycle” your new aquarium for at least one month. It is advisable to get a test kit from the aquarium store to measure the amount of ammonia, nitrites, and nitrates.
  8. If the above measurements are stable and safe, you should only add your fish.
  9. Your aquarium test kit will also measure the water’s PH balance. Zebra danios function best in water with a PH balance of 6.5 – 7.2.

Should You Keep Zebra Danios Separate From Aggressive Fish?

Zebra danios are not aggressive fish. They can be safely added with smaller fish in the same tank. Ensure that you do not put aggressive fish with your zebra danios.

Zebra danios are pretty peaceful, and they are active swimmers. Other fish species might prefer a calmer environment.

How Should You Feed Your Zebra Danios?

Zebra danios are fed in small amounts. There is no special feeding care you need to follow. The good thing about zebra danios, is that they’re not picky eaters.

Be aware not to overfeed them because it will cause many problems for the rest of the aquarium fish. An interesting fact is that a zebra danio fish has a stomach about the size of its eye.

Ensure that you feed your zebra danios only a couple of bites with each feeding, 2 – 3 times per week. They can be fed each day if the other fish in the aquarium need to be fed each day. Your fish might feel bloated when you have overfed them.

How Long Can Zebra Danios Live In A Tank?

Zebra danios have a typical lifespan of between two and five years. This means the lifespan can be shorter. There are no guarantees about the lifespan of zebra danios. It all depends on how you care for your fish.

Can Zebra Danios Get Sick?

Like any other animal, zebra danios can fall ill. They are at risk of suffering from the usual freshwater ailments. It is essential to keep an eye out for different conditions.

Zebra Danios are susceptible to lessor known health problems which have Mycobacteriosis. These conditions include Ich, parasitic infections, and fungal infections. This disease spreads quickly throughout the tank.

This can cause several symptoms in your zebra danios. This illness can provoke ulcers and inflammation all over the skin and cause fin loss. This condition can be fatal. This condition is not easy to treat.

An illness also found among zebra danios, is known as Nematode infections. It involves parasites that can cause physical changes, such as making the fish appear darker. This infection can also be fatal.

It can also cause fish to become lethargic and cause weight loss.

These diseases are made worse because of poor living conditions. It’s advisable to continually monitor the fish’s habitat to ensure that your zebra danios are healthy.


Zebra danios are beautiful fish that will give your home a calm atmosphere. It is essential to look after your zebra danios to ensure they are healthy, has enough space, and are fed the right amount of food. The 29-gallon tank will surely impress any guest.