Corydoras Catfish Care Guide

Written by Dennis

Corydoras catfish native to the South America, starting from the Andes to Atlantic Coast is a very small freshwater fish ranging from 25 to 120 mm. Aquarists especially like this fish because of its small size and vibrant body color.

These fishes love to swim in slow moving and almost-still streams. Clearly, keeping them in the aquariums will be appropriate. As these fishes are small in size you can keep 4 – 5 of them in a 10-gallon fish tank.

In case, you are thinking, ‘how to take care of catfish’ in an aquarium? then in this article, you will get the exact know-how of keeping small cory cats healthy and thriving.

Corydoras Catfish Care:

Before keeping these freshwater aquarium catfishes and caring for them, you must know how they behave in their natural habitat. Because only then, you will be able to create the proper housing to keep them healthy.

Behavioral Pattern:

A Corydoras is calm, peaceful and non-aggressive in nature. Also, some of the cory catfish types are timid and shy in nature. So, if you are keeping active or aggressive fishes in the tank, then it is most likely, your corys will not show up and hide behind the plants.

There are different types of Corydoras catfishes, but among them, the bronze cory catfish is hugely appreciated by the aquarists. These fishes are curious bottom dwellers.  They remain active all day long and can be seen resting motionless on the same place at night.

Ideal Tank Conditions For Corydoras Catfish:

  • 10 Gallon Tank – 4 – 5 cory catfishes.
  • Temperature – 72 – 78 degree F
  • pH – 7.0 – 7.8

While cleaning up the tank, I will strongly advise you, not to stir the bottom too much. Because doing this will resurface the amount of decaying organic matters into the water and the Corys will face a hard time to dwell at the bottom.

Also, this fish seems to have a problem with increased level of nitrate in the water. So, it is better to change about 20 – 25% of the tank water weekly. But to get a permanent solution, availing a 3 stage canister filter will be the most suitable decision for you.

The ideal water condition to have in your tank is a pH of 7.0 – 7.8 and the temperature of 72 – 78 degrees F. You can choose a 10-gallon tank to stuff 4 – 5 Corys, on the other hand in a larger tank, you need to keep track of the bioload while stuffing.

Cory Catfish Food:

Cory catfish tends to jump over the surface of the water to catch some air, so it is highly advised to keep the lid properly closed.

They love to eat fish flakes, pellets, bottom feeder tablets and small live foods like daphnia, micro worms, fresh tiny shrimp etc.

While feeding them, only give that amount of food which can be finished in 5 minutes. Even after feeding, you will see your Corys to roam around and scavenge for food. It is not that they are hungry but because it is their habit to dig the gravels with their mouths.

For, this reason, they are very good at cleaning the aquarium but do not assign this task entirely to them as a 3 stage filter will be appropriate to keep your catfishes happy and healthy.

Breeding Corydoras:

Breeding the catfishes is very easy as all they want is a rainy season. To replicate the environment you will need to change 50% of the tank water with 2-4 degree cooler water every 4 – 5 days. But do not go beyond 70 degrees F.

You will soon see the male chasing the female. After they complete the mating process in a typical T shape, it comes the time for the female to spawn eggs. Females usually try to spawn on hard surface areas at least two times a day.

To trigger spawning you can increase the oxygenation process into the water. Generally, 7 to 15 eggs are spawned in one day. And spawning occurs for three to four days.

Caring For the Fry:

Once the eggs are spawned you need to separate it from the parents, as they can eat them up. So, take a sharp knife and collect the eggs and put them into a breeding tank.

Change the water daily, to fertilize the eggs quickly. Use methylene blue to protect the breeding tank from fungus. Also, add an airstone to move the water frequently, otherwise the eggs will not get fertilized.

If the eggs turned to tarnish-brown from clear then they are fertilized and the deep white colored eggs are the unfertilized ones. So, remove them to keep the fry corys safe.

Once the fry corys are 3 – 7 days young, feed them with powdered or liquid fry food. Take care of them until 3 months. As they start to look like the small cory catfishes you can replace them to the main tank.

Wrap Up:

A Corydoras catfish can be both kept in a small or large fish tank. Clearly, corydoras is the best aquarium catfish because of its easy to care process and vibrant color.

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