If you are looking for fish that will enliven your aquarium with their brilliance and movement, take a look at the diamond tetra. This small fish, native to South America, has earned the love of aquarists not so much for its bright coloration as for the amazing, iridescent effect of its scales.
Its body seems to be sprinkled with tiny light-reflecting particles that flash with every movement. With the right lighting, your aquarium will be filled with a lively, shimmering glow. But this diamond-like shine is not the only reason to get this fish.
The tetra is a schooling fish that is fairly undemanding, making it a good choice for beginners. To feel comfortable and truly reveal their beauty, these pets need the company of their own kind and suitable conditions. Let's take a look at how to create the perfect home for these living gems.
Habitat
The diamond tetra is native to South America. The fish was first discovered in 1920 in Lake Valencia. Today, the tetra population in this lake has completely disappeared as a result of water pollution.
However, the fish can still be found in the calm, clean waters of South America. Tetras live in large groups. Their diet consists mainly of insects that have fallen into the water. In case of danger, the fish hide in the thickets of aquatic plants.
Fish characteristics
The distinctive features of the diamond tetra are:
Body. It has a diamond-shaped body, flattened on the sides. The length of the fish from head to tail does not exceed 6 centimeters.- Fins. The caudal fin is forked. The dorsal fin is pointed and slightly elongated. The anal fin extends from the anal opening to the base of the tail. The fins are translucent in color.
- Coloration. The main color is silver with iridescence. Females have a clearly visible greenish stripe running along their bodies. The fish have red spots around their eyes. It is worth noting that young tetras have more modest coloring.
Differences between males and females
Unlike females, males are larger in size. Also, sexually mature males have beautiful veil fins. Females are more modest and inconspicuous in appearance compared to males.
Care and feeding
Keeping diamond tetras is not difficult. They are an ideal choice for beginner aquarists.
However, even such an unpretentious fish needs suitable conditions.
- Aquarium. It is best to keep tetras in a school of 6-8 individuals. This number of fish will require an aquarium with a minimum volume of 60-80 liters. It is best to give preference to rectangular containers.
- Water. The water temperature should be kept between 22-28 degrees Celsius. The hardness should not exceed 15 dGH; the lower this indicator, the better. It is also necessary to change up to 30% of the total volume weekly. After planting and starting the aquarium, it should be left to settle for at least 5-7 days before adding tetras.
- Plants, decor. Diamond tetras love plants that can provide dense shade, such as anubias. It is best to plant along the walls so that the fish have room to swim freely. It is essential to provide shelters where the fish can rest or hide in case of apparent danger.
- Lighting, aeration, filtration. Lamps that provide diffused light are suitable for lighting the aquarium. It is important that the length of daylight hours does not exceed 12 hours. A filter and aerator are also required. You can choose combined models. The power of the equipment is selected individually for each situation, based on the volume of the aquarium.
- Substrate. Tetras prefer to swim in the middle layer, although they often sink to the bottom and even dig into the substrate. Sand is the ideal solution in this case. Dark colors are best to highlight the natural beauty of the fish.
- Care. Aquarium maintenance is standard. It is important to keep the substrate clean, remove organic waste in a timely manner, and clean the filter.
Feeding
Diamond tetras are omnivorous fish. To keep them healthy and support their immunity, it is important to provide a complete and varied diet.
The following can be used as a source of protein:
Be sure to give the fish plant food. For example:
If there is a shortage of plant food, tetras will eat aquarium plants.
In addition to the above, ready-made commercial foods are used as the main diet. Give preference to sinking pellets and chips. Also, make sure that the pieces of food are not too large, as the fish will simply not be able to swallow them.
Tetras can be fed in the morning and afternoon when they are most active. Make sure that the fish eat all of their food. Any leftover food must be removed so as not to pollute the water.
— Dmitry Sudakov, Moscow, has been involved in aquarium keeping for 12 years
The diamond tetra is a small, lively, and bright fish that is perfect for both beginners and experienced aquarists. It easily adapts to different conditions, is unpretentious in food, and coexists peacefully with other inhabitants of the aquarium. To keep the fish happy, they need space to swim, slightly dim lighting, and a school of 6–8 individuals — alone, they get lost and nervous. With proper care, these tetras will delight you with their silvery shine and playful behavior for a long time.
Breeding at home
The diamond tetra spawns easily in a community aquarium. However, in this case, there is a high risk that the offspring will be eaten. To avoid this situation, it is worth taking care of preparing a spawning tank in advance.
Preparing the spawning tank. An aquarium with a volume of 15-20 liters is suitable for this purpose. It must be filled with water from the main aquarium. The water level should not exceed 20 centimeters. Peat is used for filtration in the spawning tank, and a fine-mesh net is placed on the bottom. The aquarium is covered with glass on top. Shelters and plants are a must. The water itself should be soft, and its temperature should be 2 degrees warmer than in the main aquarium.- Choosing breeders. For breeding, healthy, sexually mature fish without any abnormalities are selected. A few days before spawning, they begin to feed them high-protein foods, mainly larvae and adult insects. When the female's abdomen becomes rounded, the future parents are transferred to a spawning tank. This is done in the evening.
- Spawning. It only takes a few hours. A female lays up to 1,000 eggs at a time, which sink to the bottom. After that, the parents are removed to a common aquarium, as they may eat their own offspring.
- Caring for fry. It takes about 5-6 days from the moment of spawning to the moment the eggs turn into full-fledged fry. From this time on, young tetras can be fed with specialized feed. It is very important to sort the fish in time, as larger fry often eat their smaller counterparts. By 8 months, young tetras reach sexual maturity and can become parents.
Breeding tetras at home is not difficult. Moreover, it is a very interesting process.
Compatibility
The diamond tetra has a peaceful and calm nature. It easily gets along with other peaceful fish of a similar size.
The tetra can be kept in the same aquarium with:
Aggressive and overly active fish that may attack and frighten the ternecies are not suitable for cohabitation.
More care tips:
Tips and life hacks
Tetras are constantly searching for food and never refuse to eat. Therefore, it is important to ensure that the fish do not overeat.- To create subdued lighting or shade in an aquarium with tetras, you can plant floating plants.
- If diamond tetras chase other fish and bite their fins, add a few more tetras to the aquarium. Then they will be busy establishing a hierarchy within the group and will stop bothering their neighbors.
Diamond tetras are unpretentious and easy to care for. They have a lively character, are curious and active. These fish will be a worthy decoration for your aquarium, and the right substrate and lighting will help emphasize their beauty.
Video review of the diamond tetra
The diamond tetra is a real decoration for a home aquarium. Its bright, iridescent appearance and lively character will not leave anyone indifferent. Watching a school of these fish is a real pleasure.
Caring for them is not difficult, but it does require attention. The main thing is to provide them with stable and clean water, space to swim, and peaceful neighbors. If you create the right conditions for them, they will delight you with their activity for many years.
Remember that tetras are schooling fish. Solitude or living in a small group causes them severe stress. Keep them in groups of at least six, and you will see the full range of their natural behavior.
In general, the diamond tetra is an excellent choice for both beginners and experienced aquarists. It is not capricious, beautiful, and interesting. Just be attentive to its needs, and your underwater world will sparkle with new colors.
