I’ve had more than 24 corys in a 55 gallon tank. Plenty of room with happy, stress-free corys, but I guess how much open space depends if there is a lot of décor or plants taking up a lot of space or not. But do be weary of potentially hybridizing the two Corydoras species.

Also How often should I change my water in my 55 gallon fish tank?

Most users here would recommend 25-50 percent water changes once a week. Water changes cannot be missed because they remove what no filter can. The nitrates and “gunk” that in large quantities, will kill fish.

Subsequently, How many Cory catfish together? As a relatively small fish, they crave safety in numbers, so a group of six corydoras or more (all of the same species) is highly suggested. These peaceful bottom dwellers can be kept with pretty much any community fish that won’t eat or attack them.

How many corydoras are in a gallon? You can absolutely keep corydoras in a 10 gallon tank, somewhere between 6 (no fewer than) and 12 of a single pygmy species. If you’re going to keep more than 8, it should be a species only tank. Otherwise, you can add other fish to the aquarium as well.

Are corys more active at night?

Most species of Cory Catfish are extremely active regardless of the time of day. However, Corydoras tend to be most active during the nighttime. … During the day, you may find your Cories being still and resting. Although they are not sleeping, you should not disrupt them during these moments.

How hard is it to maintain a 55 gallon fish tank?

A 55 gallon is very easy to maintain compared to a 10, with one exception. You need that the same percentage of water changes, and therefore, more water each change. To keep it easy, stock very lightly. Don’t get a big tankbusting oscar or 5 times as many fish as a 10 will will.

How often do you have to clean a 50 gallon tank?

If you have a large, well established tank you should clean your tank on a weekly or bi-weekly basis. A water change should be done to the keep the tank clean and the fish happy. Depending on the type of filter you use for the tank, you may be able to get away with cleaning the tank once per month.

Is 4 Cory catfish enough?

Tank Size: Cory Catfish are pretty small fish. Technically, a single Cory should be fine in a ten gallon tank. … Since they are schooling fish, Cory catfish should be kept in groups of 5 or more. For a school of 5 Corys, a minumim tank size of 20 gallons is recommended.

Can you keep 4 Cory catfish together?

Cory Catfish School Together: Cory Catfish are very social creatures, especially with others of their kind. While Cory Cats can survive alone, they seem much happier in a group of two or more. Two Cory Cats of the same type will often stay close to one another as they move throughout the tank to feed.

Can I mix Cory catfish?

Corydoras Behavior/Compatibility

Different species can be mixed, and they will often group together. For best results, they should be purchased in groups of 5 or more.

Is 3 Cory catfish enough?

Tank Size: Cory Catfish are pretty small fish. Technically, a single Cory should be fine in a ten gallon tank. The problem is that Corydoras are not happy when kept by themselves. Since they are schooling fish, Cory catfish should be kept in groups of 5 or more.

Can Cory catfish live in a 5 gallon tank?

Cory catfish prefer to be in schools and 5 gallon tanks don’t provide most species of corydoras with enough room. … They make an excellent addition to any planted tank and can be one of the best fish for a 5-gallon tank if you maintain their water quality and avoid overfeeding.

How many Panda Corys are in a 10 gallon tank?

You can still do 6-8 panda cories in a 10g if you really wanted to. With nifty hardscaping to maximize bottom area, good filtration and clean substrate, they can be happy and thrive.

Are Cory catfish nocturnal?

Corydoras, Brochis and Aspidoras species are shoaling fish, meaning they like to hang out together. … Unlike many catfish, which are nocturnal and can be secretive, Corys and their relatives tend to be out and about during the daytime. They can be kept with most peaceful community fish.

Why are my fish more active at night?

More Active Fish

Fish are more active in the light. … Another reason fish become more active at night is because the water temperature begins to cool off. This is especially important in the summer months. During the heat of the day fish dive down deep to find the cooler waters.

Are Cory catfish very active?

Corys have a calm, peaceful and non-aggressive temperament. … Corydoras Catfish are active and curious bottom dwellers, methodically scavenging the tank bottom looking some food to eat. Cory Catfish can be very active during the day, but they can also spend time peacefully resting motionless in the same spot.

How much does it cost to run a 55 gallon fish tank?

General Consumption

Based on a freshwater fish only aquarium at about 72 F, the total consumption for a small tank (10 Gallons) is about 150 kWh a year. A medium tank (30 Gallons) will run between 150 – 200 kWh per year, while a large aquarium (55 Gallons) needs 200 – 400 kWh per year.

Are large aquariums easier to maintain?

Don’t get a small tank.

Larger tanks are actually a lot easier to maintain than small ones. The higher volume of water means the water chemistry and temperature will stay more stable, and the tank will function more easily as a mini-ecosystem with the ability to self-clean, to a certain extent.

How often does an aquarium need to be cleaned?

Depending on how many fish you have, and how messy they are, most tanks require cleaning about once every two weeks. Cleaning should involve: ✔ Siphoning the gravel to remove any debris and uneaten food, and changing about 10-15% of the water.

How often should we clean fish tank?

You should aim to do a part change of your fish tank’s water around every two to three weeks, more regularly if you have a large amount of fish in your tank. A full fish tank water change should be done very rarely and only if absolutely necessary.

How big of a tank do you need for Cory catfish?

Cory catfish, which grow to be about 4 inches long, can live in 5 to 10-gallon tanks. Larger catfish require at least a 30-gallon tank. Keep the aquarium near a power source in a low-traffic area, away from direct sunlight and drafts. Water weighs about 10 pounds per gallon.

How many Cory catfish in a 30 gallon tank?

As for numbers, in a 30-inch tank I would aim for 12-15 corys. You may already know, but they need several of their own species; five of each species is ideal, but with so many corys you can mix species and have 3-5 of each.

How many Cory catfish in a 15 gallon tank?

You usually want to keep them in groups of 6 or more, but given your tank size I would go for 5.