Care Level : Easy, acclimate slowly to your tank water and don't even think about adding them to an aquarium that has not completed the aquarium nitrogen cycle. Breeding : They can be difficult to breed in the home aquarium. They are egglayers and the adult fish must be removed after dropping the eggs. Feed the fry brine shrimp. Tank Mates : Many, given their peaceful nature. Avoid keeping with tropical fish large enough to eat them. Disease : Freshwater Fish Disease.
Give them a varied diet for best results. Site References : Fishbase Wikipedia. Toggle navigation. Scientific Name : Paracheirodon axelrodi Common Names : Cardinal Tetra Care Level : Easy, acclimate slowly to your tank water and don't even think about adding them to an aquarium that has not completed the aquarium nitrogen cycle.
Aquarium Size : 10 gallon or larger. Tank Region : Mostly middle to top. Gender : The male is usually smaller than a female of the same age. Myleus schomburgkii Disk Tetra One of the larger tetras reaching up to 16 inches 42 cm in size as adults.
Hyphessobrycon amandae Ember Tetra Only gets to about an inch in size so it's one of the smaller tetras. Underneath this, a red stripe adorns their lower body and extends into a portion of the tail fin. Otherwise, their fins are completely transparent and their underbelly has a lovely cream hue.
These colorations are on best display for mature adults when they live in water conditions that have slight acidity and soft water pH levels, bringing out the most vibrancy and healthiest scale growth on the fish. Interestingly, you can sometimes find cardinal tetras in gold and silver color patterns, but these are much rarer and harder to find at your average pet shop or fish emporium.
In general, cardinal tetras are fairly small aquarium fish, only reaching about 1. However, though they are small, the cardinal tetra does require at least six other tank mates of their same species to be happy, and up to ten or twelve is ideal for a cardinal tetra school. That means plenty of these little fish swimming around and taking up room!
It is known that tetras tend to live longer in captivity than they do in the wild, and that is no different for the cardinal tetra. These lovely little fish do not have the longest lifespan though, only surviving in a tank for about two to five years.
However, if you keep their tank conditions and diet well balanced and maintained, you will get to enjoy them for as long as possible. Some owners have even reported cardinal tetras that live up to eight years in the right conditions! Because water parameters are the most common issue that tetra keepers run into, maintaining your water quality will lead to longer lives for your cardinal tetras. Tetras are notoriously docile, and will not fight back against a fish that wants to hassle—or harm—them.
As mentioned, the cardinal tetra is a placid and gentle fish. They like to swim in schools of other cardinal tetras and spend most of their time in the mid-level of your tank. They get along well with most other species, with a few exceptions, and are very social. Because of their social requirements, if cardinal tetras are not kept with others, they will become too lonely and isolated, and this could lead to heightened stress levels and even death.
They will be more relaxed and healthy when able to interact with other fish—particularly other cardinal tetras. Cardinal tetras are also notoriously docile, preferring to run away from any danger than face it. And, being rather small, they have no defenses against larger, more aggressive fish. Because cardinal tetras are social little fish, they need to be part of a communal tank, and have a school of cardinal tetras to swim with.
In general, the larger the school, the happier your cardinal tetras will be! Cardinal tetras are one of the most social fish when it comes to others of their own species, and have been known to interact pleasantly with other species of fish in a communal tank.
However, they generally like to keep to themselves and will not cause any trouble in the aquarium, which makes them a great addition to your communal tank. Just make sure nothing with big jaws or an aggressive attitude is part of that communal tank as well, or you will find cardinal tetras going missing and being turned into fish snacks! Choosing tank mates for your cardinal tetras can be tricky, but if you stick with fish that are smaller than 2 inches when fully grown, your tetras should be safe.
There are also a few larger fish that work well in conjunction with cardinal tetras. Some of the best species to pair with cardinal tetras in a communal tank include placid fish such as the following:. Additionally, you can safely pair small invertebrates with cardinal tetras, as they will not see them as a food source. This includes tank dwellers such as cherry shrimp, mystery snails, and a variety of freshwater crabs. These fish are quite hardy and can withstand a variety of tank setups.
However, to keep your cardinal tetras in the best possible health, there are a few specifications that you should maintain your tank and habitat at.
These fish may be small, but because of their larger schooling numbers, you do need an appropriate tank to house them. If you have a smaller school and fewer tank mates, a gallon aquarium should be big enough, but for larger numbers, you should use a gallon tank.
Factor about 2 gallons per extra cardinal tetra that you add to the aquarium to account for their schooling and active natures. These fish should be kept in a mature tank with soft acidic water that has stable chemistry. Because of these condition requirements, cardinal tetras are not suited for brand new aquariums. To keep your cardinal tetra healthy and happy, maintain pH levels below 6 and hardness at 4dGH or below. The eggs will start hatching in about 24 hours and will live off the yolk sac for more days.
You should start feeding the newborn fish rotifers, infusoria, egg yolk, and commercially prepared fry food as soon as they start swimming freely. Then move on to freshly hatched brine shrimp as the tetras grow. Keep lighting low as young tetras are very photo-sensitive. Not really. While adults can be taken care of easily, young tetras are hard to raise and keep alive. A Cardinal tetra aquarium can be as big as you want it to be but 10 gallons is recommended as a bare minimum as you want to have at least tetras grouped together.
As for an upper limit — there is none, go for as big as you want. Males tend to be more slender and have a hook coming out of their anal fin. Indeed they can. Both types of tetras school very well together. In fact, the same goes for all types of tetras — these fish are just that social! All tetras get along and can also live with many other fish, as long as they all share the same environmental needs.
Other common and suitable tankmates for the Cardinal tetra in addition to the Angelfish include Dwarf Gouramis, Kuhli Loach, Rasboras, Cherry shrimps, Bristlenose, Danios, Corydoras, and many small-to-medium-sized Catfish species. Tetras are omnivores and can eat almost anything. The rest can be any type of live, frozen, or prepared food. Cardinal tetras should be fed a minimum of two times a day — more if possible.
If you only feed your fish twice a day, give them as much as they can eat in 5 minutes. If you feed them times a day, give them as much as they can eat in 2. The most likely culprits include bad water conditions, rapid water changes, an overcrowded aquarium, overfeeding, stress, as well as diseases. If you suspect the latter, look for symptoms such as restlessness, difficulties swimming, cysts and lumps on the body, a loss of coloration, and a curved spine.
The ideal temperature range for Cardinal tetras is 73 to 81 degrees Fahrenheit 23 to 27 degrees C. Fortunately, this is in line with the temperature preferences of quite a few other common aquarium fish species.
In the wild, the standard pH level these fish live in is about 5 pH. The ideal water hardness for Cardinal tetras is anywhere up to 4 dGH. This tiny fish is native to Brazil, Columbia, and Venezuela where it lives in the fresh waters of River Orinoco, Rio Negro, and other tributary rivers of the Amazon. Admittedly, they are a little difficult to breed, but as long as you take care of everything else, you should have the opportunity to get the hang of that too.
Important things to know before introducing Java Moss into your aquarium. Java Moss is one of the most versatile and easiest plants to grow in the aquarium. But, here is what to consider before introducint it to your aquarium.
Sviat Oleksiv.
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