Dwarf Corydoras Care Guide: Tank Setup and much more – 2021

Dwarf Corydoras


If you are a beginner in fish keeping, then picking a small and peaceful fish that goes suitable with any small and easy-to-tackle tank will be the best choice. And in such a case, dwarf corydoras will be an ideal option for anyone.

Dwarf corydoras or Dwarf Cory Cory are found in the Madeira river basin of Brazil. These tiny corydoras come in a silver-colored appearance and are best kept in a group. Also, they are easily cared for in a 10-gallon tank. You can find these corydoras in any fish store.


Category Rating
Level of care Easy
Appearance Silver with a horizontal black line running through the middle portion of the body
Temperament Peaceful
Life expectancy 3-4 years
Size 0.75-1.5 inches
Diet Omnivorous
Family Callichthyidae
Tank Size 10-gallon
Tank Environment Slightly neutral or alkaline water with proper arrangement of plants and rocks
Tankmates Very peaceful and small

About Dwarf Corydoras


Dwarf corydoras, Dwarf catfish, or corydoras hastatus, also known as Dwarf Cory Cory, is pretty popular with its dwarf structure and bright appearance.

Corydoras are small freshwater fish from the sub-family of Corydoradinae, and they belong to the genus named Cory.

Dwarf corydoras are usually found in the Madeira river basin of Brazil. Their population is also quite widespread in the South American continent. Nevertheless, these fishes mostly thrive in tropical aquariums and are easy to house in a small tank.

Dwarf corydoras have many similarities in looks with Corydoras catfish, though the former ones are very small. Besides, dwarf corydoras appear pretty similar to Corydoras pygmaeus and Corydoras habrosus, but do not be mistaken!

Dwarf Cory Cory’s silver body with a solid black line running horizontally from their snout to tail fin makes them relatively easy to spot and recognize. Also, there is another thin black line that runs through their lower body.

As a baby, corydoras come with vertical stripes on their side. But these stripes tend to fade as they grow and eventually develop horizontal lines. Corys may not be colorful specimens, but they are too cute to add to an aquarium.


Dwarf Corydoras Temperament


Dwarf corydoras are very well-behaved. This species of fish is not at all aggressive. In fact, they are small funny fishes that love to roam around in the aquarium.

These corydoras usually prefer to spend most of their time at the lower levels of the tank. But as Corys are shoaling fishes, they will sometimes tend to shoal higher to the aquarium level.

These corydoras usually move towards the tank’s upper level to use their intestine for deriving oxygen from the air. However, these corydoras mostly do this when the water quality in the aquarium is poor.


Dwarf Corydoras Tank Requirement


Dwarf corydoras are very easy to care for if you house them in a nano tank, which is rightly decorated. To maintain the good health of these fishes, set up a tank that mimics their natural habitat.

Corys usually like to hide in their natural habitat amidst the plants and debris, or sometimes they even rest in the sandy sediment. So, you need to replicate a similar substrate in your home aquarium.

Pick a very soft substrate for them, which your Corys will prefer the most. Also, a soft substrate will save them from getting any scratches or infections in their barbels.

Besides, while setting up the tank for your corydoras, make sure to add plenty of hiding spaces. You can easily acquire this by incorporating a combination of plants and decorations into your tank.

The tank water needs to be warm as dwarf corydoras do not prefer cold water conditions much. You need to ensure that the pH lies somewhere between neutral and slightly alkaline. Also, make sure that the water movement is slow, and the tank has a bright light set-up.

It is essential to add an efficient filter to the aquarium to keep the water clean and healthy for your fishes. Though this particular fish species is suitable for a small tank, it is essential to offer them enough space for roaming around freely and keep them healthy and happy.


Dwarf Corydoras Tank Set-Up


To take the proper care of your dwarf corydoras, you need to ensure that you are adorning the tank set-up appropriately. As these fishes are tiny in size, the tank set-up is not an arduous task.

So, here is how you can do it.

  • Dwarf cory is typically a shoaling freshwater fish. Thus, you have to pick at least 4-8 specimens to keep them healthy and happy. So, you can opt for a minimum of a 10-gallon tank to take good care of your corydoras. In case you are thinking of adding more specimens to your tank, you need to get a larger tank size.
  • The tank water temperature needs to be within the range of 72-79℉. You can also add a heater to the tank to maintain this temperature and take good care of your fishes.
  • You need to ensure that the pH level of the tank water lies within 6-8.
  • Dwarf cory can get a little bit messy. So, you need to add an efficient filter to the tank to keep the water properly clean. But make sure the water movement is not too high; instead, it is moderate.
  • You can apply a standard amount of lighting to the tank as corydoras prefer to stay under bright lighting.
  • Add enough plants and decors to the aquarium to make it look nice and offer more hiding places to your dwarf fishes.
  • You can incorporate sturdy plants like the dwarf hair grass, Amazon sword, and java moss.
  • For the substrate requirement, it is better to pick a softer substrate like sand, which will protect your fishes from any harshness.
  • You can also add rocks or bogwoods to give your tiny fishes enough place to rest.


Dwarf Corydoras Tank Mates


Dwarf corydoras will do fine with various tank mates as this fish species is very friendly and not at all aggressive.

But be careful not to keep your dwarf corydoras with any aggressive or large fishes; otherwise, your dwarf cory will turn into a yummy meal.

So, make sure the tank mates you add along with your Corys have a mouth smaller than one inch so that no fish can gulp your dwarf corydoras.

So, here are the most compatible fish species that you can easily keep with your dwarf Corys.

  • Neon Tetras
  • Guppies
  • Zebra Danios
  • Cherry barbs
  • Dwarf Gourami
  • Mollies
  • Marbled Hatchetfish

What Do Dwarf Corydoras Eat?


Feeding this species of fish is not at all a challenging task. Dwarf corydoras are usually omnivorous. So, these corydoras will eat anything you offer them with.

These fishes happily accept both leafy and meaty meals. However, the best food you can offer them is dried foods, which are readily available at any pet store. Pellets and wafers will also be a good choice for them.

As dried foods lack proper nutrition, you should feed your dwarf corydoras with supplements. You can include some meaty foods in their diet like insect larvae, bloodworms, or brine shrimps.

However, it is better to add a variety to their diet. Thus, it is recommended to offer these Corys some homemade fish foods as well. You can offer them green vegetables, blanched spinach, zucchini, etc.

But do not let them eat algae. It is a very common assumption that corydoras are algae eaters. But dwarf cory is strictly not!

While feeding your corydoras, keep an eye on them. It is essential to ensure that all of your fishes are getting proper proportions of food. It is better to feed them once or twice a day.


Care for Dwarf Corydoras


While petting dwarf catfish, make sure you offer them a top-notch level of care so that the corydoras can have healthy and happy growth in your tank.

Diseases are common for your dwarf corydoras if you are keeping them in an unclean environment. They can fall ill quickly if you do not maintain proper tank parameters regularly.

You need to perform safe water changes every two weeks. Also, it is essential to wipe down the algae before it proliferates in your tank. Moreover, make sure that the water of the tank is fairly oxygenated.

To take proper care of your dwarf corydoras, you must offer them a very healthy diet, as lack of adequate nutrition can make them weak and affect their immune system.

This species of corydoras is much prone to diseases like the red blotch disease. If you find any red sore on their body, you need to treat them immediately. This disease primarily occurs if the fish receives much stress due to environmental conditions.

Also, it is vital to maintain proper water parameters to keep your Corys away from diseases like ICH.


Dwarf Corydoras Breeding Guidelines


Dwarf corydoras are pretty easy to breed in your home tank. These fishes indulge in regular mating sessions.

To achieve healthy spawning of your dwarf corydoras, you need to feed them a nutritional diet and provide a very healthy water condition.

During mating, the female dwarf corydoras will lay at least 100 eggs at once. They will hold a few of the eggs within their pelvic fins until the male Corys fertilize them.

The fertilized eggs will then get attached to a safe surface area until they hatch. During this time, you need to take special care to ensure that the eggs are not caught with fungus.

As the eggs hatch and tiny fries come out of the shell, you need to feed them properly to let them grow healthily. Baby corydoras can eat only tiny food fragments as their mouths are very small.

You can offer them infusoria or other crushed flakes until the fries become mature enough to consume an adult diet.


Interesting Facts About Dwarf Corydoras


Here are a few fun facts about Dwarf Corys that you need to know to offer them proper care in your tank.

  • You can often get confused between a Dwarf Cory and Pygmy Cory as they come with an almost similar appearance.
  • Their body shape is much elongated than the other types of Corys.
  • After laying the eggs, the parent Corys tend to eat their eggs.
  • Usually, dwarf male Corys are slightly slenderer than their female counterparts.
  • Corydoras have a hilarious behavior of winking at you. Cute, right!

Where to Buy Dwarf Corydoras?


Dwarf corydoras are very easy to find in any of your nearby aquarist or pet stores. This species of corydoras usually come at a very moderate price range.

In case you do not get them in an aquarist’s shop, you can easily buy them from a hobbyist. Also, you can easily find them at any online store for pet fish.


How Big Do Dwarf Corydoras Get?


The very name of these fishes is suggestive of their length. As this species of corydoras are dwarf, they do not extend much longer. Usually, the male dwarf corydoras are smaller than females. The male corydoras reach up to a height of only 0.75-inches.

On the other hand, the female dwarf corydoras are bigger and can grow 1-inch longer than the males. Also, the female fishes tend to be broader than the males when the Corys are pregnant.

How Long Does Dwarf Corydoras Live?


Dwarf corydoras are not much long-lived. This fish species will hardly live up to 3-4 years if they receive adequate care and diet.

Is Dwarf Corydoras Suitable for Aquariums?


Yes, these tiny and cute dwarf corydoras are very easy to care for in a home aquarium. Especially if you are a beginner and thinking of cherishing your fish-keeping hobby with an entry-level fish, then dwarf corydoras will be the best choice in every aspect.

These corydoras are great for any peaceful community tank set-up. These fishes exhibit unique and funny behavior, which makes them a friendly and bubbly companion for any tank type.

So, what are you waiting for? Get this pretty dwarf Corys for your home tank today!