It is no secret to anyone that there are many species of fish to buy in an aquarium or pet store. Among so many types, colors and shapes, it is almost impossible to decide on a specific one. That is why going to dad Google to inform us about certain species and their behavior is very useful. This is where our article on the Tetra, black widow fish or simply nun, becomes important.
We have been excited to write this article and make this fish known, because it is one of the most recommended to acquire due to its simple care and feeding. Not to mention that they are fish that do not usually acquire a very considerable size (Their maximum is 5cm). So taking care of them in a small fish tank is possible, considering the space you have for the fish tank. The nuns are, in my opinion, an excellent alternative to goldfish.
In this post we will talk about the appearance and shape of the nun, behavior, feeding and we will also comment a little about its reproduction. The latter in case you are interested in it.
Also remember to follow the recommended publications that we will leave you throughout the article, surely more than one interests you “Sailfish – Information and characteristics “.
Appearance and shape of the nun fish.
The nuns have a very high body, slightly thick in the middle of their body, very compressed on the sides. This by those that we can find naturally and commonly. However, and thanks to selective breeding. Mojito fish can be found with certain varieties. One of them is the species that maintains its characteristic black and white colors, but with long fins.
As for its color, the nun fish is usually white with some black stripes on the front (head). And it has a gray gradient in the lower area. However, there is a very striking variety of golden color, which is genetically selected thanks to selective breeding. Albino nuns can also be found in this species. Which are basically all white fish with red eyes?
In the case of their albino versions (And there are also semi-albino ones). There is another artificially inked variant with blue and pink colors. What allows taking further the variety of nun fish that we can find in an aquarium?
Do you like what you read? Remember to visit our related posts, you will learn about other species of fish, such as “Surgeonfish – Care and Tips “.
Behavior.
They are quite active fish but with a passive or peaceful attitude inside the fish tank. In nature they live together in schools, so it is recommended to have them accompanied by a small school of at least 8 nun fish. We can tell when they don’t feel comfortable because their active behavior is reduced, to a more calm and quiet one. Generally finding refuge in the vegetation of the fish tank.
If you allow them to coexist with other nun fish, don’t worry if they start chasing each other. It is normal for them to do that, they are harmless fish that do not harm each other.
Feeding of the nun fish.
Mojito fish are omnivorous creatures, which mean that they feed on both vegetables and animals. It is recommended that the diet of these fish is stocked with live foods (such as worms, crustaceans and insects). And fish food (in flakes, granules or frozen).
At the same time, it is recommended not to overfeed them, in fact, just give them food once a day (with a sufficient amount so that they are satiated). It is more than enough.
Reproduction.
These fish are free-laying, oviparous beings that reproduce easily. If your intention is to procreate them, take into account that the aquarium must be at least 50 liters. The reason for this is that the nun fish lay numerous eggs, so you will need enough space. It is also important to place various plants or algae with fine foliage at the ends. Some recommendations that we can give you are the ampullas, Cabimas or racial.
Place the plants in such a way that the center is clear, forming a kind of circle. Make sure the bottom is covered with a plastic mesh and a considerable layer of java moss. Also make sure that this area of the fish tank is dimly lit, as the eggs and fry are very sensitive to light. Finally, the temperature of the water should be between 26 to 28ºC and its pH slightly acidic.