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Petitella georgiae – False Rummy-nose


Petitella Georgiae Care Guide


Category Rating
Level of care Easy to moderate
Temperament Mostly peaceful
Appearance not as brightly colored, but there is still some red present
Life expectancy 5 to 8 years
Size 4,5-5 cm
Diet Omnivore
Family Characidae
Tank size 20 gallons
Tank environment Setup similar to black water conditions
Tank Mates Cardinal Tetra

Electric Blue Ram

Peppered Cory



Petitella Georgiae Introduction


There are a wide array of fish species to choose from to add to your community tank. Amongst the many fantastic creatures out there, you will not regret your decision to choose Petitella Georgiae.


It is also called the rummy nose tetra.


This fish species is one of the most popular tetras amongst the huge fans of the aquascape.


As you look at this fish for the first time, you will agree that it resembles three different fish put together. That seems bizarre, but it is indeed one of the reasons why many aquarists are in love with this little buddy.


If you are an avid tetra fan, you will probably want to tag this fish along in your community tank.


It is a peaceful fish with shoaling characteristics, which is pretty friendly with most of the other tank mates.


In order to keep this in captivity at home or office, there are some specifics that you need to pay attention to before proceeding. Keep on reading to find out what you need to prepare to treat and care for this fish well.



Petitella Georgiae Overview


The rummy nose tetra fish have been available from the top reputable breeders in many countries. It is now easier to pick up a group of buddies and put them in your aquarium without any hassle. These are the things to know first before starting to care for and maintain these fish.




His species, Hemmigrammus rhodostomus, is distributed across the tropical world. Its three major subspecies are together known as “rummy nose tetras,” which is a group of fish that includes the rummy nose tetra (frequently referred to as the Firehead Tetra).


Hemmigrammusbleheri and Petitellageorgiae are two more genera of bacteria that occur naturally in Latin America, most notably in the Brazilian Amazon.


Rummy nose tetras are imported into aquariums all around the world from the countries listed above. Among the basins featured are the Lower and Upper Amazon basins, as well as the Rio Negro, Rio Purus, and Rio Madeira basins. It is impossible to distinguish between these three types of teenage abuse just on the basis of observational evidence.


This species of Tetra can be found in rivers with poor mineral content, high acidity, and decaying organic waste, and it flourishes in these conditions. Aquatic plants can occasionally be found flourishing along the riverbanks. These plants minimize the amount of sunlight that reaches the water, which creates ideal conditions for the rummy nose tetra to thrive. This understanding helps to explain why similar parameters are reproduced over and over in the aquarium.


psychological characteristics


The first physical sign that you will see is its bullet shape and dorsal side. The body coloration is mainly glossy silver. There are some green blots on their scales, although each fish could have different characteristics. The tail fin has horizontal stripes in white and black. The white stripes are usually more numerous than the black stripes.


The head coloration is bright red. This color also covers the eyes. When it comes to sex, there are no visible signs that you can read to differentiate males from females. You could take time to observe and see the difference in the shape of the abdomens. The females tend to have a rounded swelling in their abdomens.


Life Span




The key to its longevity is its great mimicry of the natural habitat of the fish. Moving the petitella georgiae from their original habitat is a bold move. Not all specimens can adapt to the new environment. That’s why the life expectancy in the cavity is usually much shorter than in the wild. The same thing also goes for the other fish species.


In a well-conditioned tank and with great diets, you can expect your tetras to live as long as six years or more. Some owners report that they can make their tetras live up to a decade or more. However, it was just their claim. We still don’t know whether it is true or not.


Wild Habitat


The rummy-nose tetra inhabits the Amazon and its tributaries. This quiet, calming pool has a small stream running through it.


There are plenty of rocks and sticks beside the stream. Plantlife surrounds the beaches, both on land and underwater.


The river is brown from the amount of decomposing plants.


The rummy nose tetra is found in the Atlantic Ocean. The brilliant rummy nose is found in the blackwater tributaries of Brazil’s Rio Negro and Colombia’s Rio Vaupes, unlike the common snook. The Rio Negro has the same bright, rummy nose.


The rivers in Brazil and Peru are home to the fake rummy nose tetra.




It will also depend on the diets and lifestyle habits of your rummy nose tetras. The fish will reach four to 6.5 cm or more. If you keep feeding them with great diets and maintain the water parameters routinely, they will likely grow more.






This species loves huge groups. Keeping them in a small group encourages enthusiasm and relaxation. We suggest a minimum of six specimens, but a larger group would be beautiful.


This species can not be kept in isolation. The tension caused by such a situation may harm your fish’s health.


Also, keep in mind that many species can be influenced by loud noises or other activities outside of their tanks while choosing a location.


Its calm nature makes it a great choice for a social aquarium. To investigate or escape, they like to congregate on the middle levels.




Petitella Georgiae Caring and Tank Guide


How many gallons to add? What are the tank mates? How about the setup? You will find all of the important answers here.


Tank size


You could start setting up your tank with as small as a 10-gallon nano tank. For each 10 gallon tank, you could add around five to six tetras. If you add another group of the same number, do not hesitate to add 10 more gallons to the tank. Consider avoiding overstocking your tank because it will only make all of the fish stressed and anxious.


The decoration


You could add the darker sand to the bottom of the tank. Consider focusing on the sandy substrate, not the coarse one. The darker sand can help illuminate the color of your petitella georgiae fish.


These schooling fish like to hide in the shades. Consider adding driftwood and rocks for them to hide and rest. You can also add some live plants which can reach the top of the aquarium.


These will not only make the lighting dimmer but also provide great shelters and shades for all of the fish.





Water Parameters


Keep the temperature warm, between 22 and 29° Celcius.

The hardness level of water should be between 2 and 8 KH. The pH level should be between 5.5 and 6.8.


It is important to keep the water conditions prime for the fish and their mates.



Change at least 10% of the water twice a week to keep the water fresh and clean. Maintaining the water quality on a regular basis will ensure your fish are fit and well all the time.


You could also improve the water quality by adding Indian almond leaves and alder cones. This will help provide shade and make the water great for the fish. Remove the leaves in two weeks and replace them with new ones to maintain the quality of the environment.



If the water is too cold, you will need to install a heater in your aquarium. Choose an external filter to control nitrate and ammonia levels. Then you could see the water movement as well.


Keep the water soft by using a peat filter.



Petitella Georgiae Tank Mates



Select tank mates who have similar sizes and temperaments, and pick those who are used to the water conditions.


Consider not adding too active species since they could affect your tetras’ emotions.


Your rummy nose tetras can live with neon tetras. They are easy to care for and maintain. Not to mention that they can live in the same water and tank conditions.


Other pairs that can be great for your petitella georgiae are:



Do not add more aggressive fish to the same community tank.


How to feed Petitella Georgiae


They are not picky eaters.


You can use various live and frozen meals and they won’t protest. Just make sure to focus on foods that have good nutrients and quality.


Live bloodworms are a favorite. You could also give them live mosquito larvae.


To balance their nutrient intake, you could also give them dried flakes, granules, or fish commercial pellets.


Feed them twice a day. The food will end in two minutes. Get rid of uneaten foods to prevent contamination of the water.


The Construction of a Breeding Tank of Petitella Georgiae


Setup a breeding tank (approximately 10 gallons) with an external filter system in community aquariums. 

It is recommended that you keep your water hardness between 4 and 6 KH. Softening the water is accomplished through peat filtering. The optimal pH range is 6.2 to 6.7.

Java moss, plants, and spawning mops can assist your fish in laying eggs. The eggs and fry are light sensitive. With these specifications, your fish will be able to spawn without any problem. 

The female lays her eggs on leaves or on the spawning mop, depending on where she is located. Parents should be removed after the male has hatched the eggs.

 The fry should hatch in 24–36 hours. After three to six days in their egg sacs, they will be able to swim freely.

 Commercial fried food or infusoria can now be prevalent for your fish pets. If you want to use baby brine shrimp or micro worms as they grow, you can do so.

Tetra fry with a rummy nose grows more slowly than another tetra fry. Initially, they will be small, with a limited number of food sources. Until they are six months old, keep the fry in a separate breeding tank.


Ensure that you examine the water’s quality before you enter it. Water, stability, and warmth are essential. The water should be replaced every two days by replacing a tenth of it.