Size
The maximum size is 6 cm (2.4 inches).
Physical Characteristics and Behavior
The Bluefin Notho, a species of freshwater killifish, with brilliant red bodies covered in iridescent turquoise dots. This bottom-to-midwater fish, which is usually calm, may be housed with other neighbourhood fish of a similar size range. Because of the potential for hostility between the sexes, it is advised to keep no more than one male bluefin notho for every three to five females.
Habitat
In their watery home, they have adapted to the following conditions: pH: 6-7; Hardness: 2-5 dGH; Tank Capacity: 10 gallons (38 litres); Temperature: 70°-75°F (21.1°-23.9°C); (33.3-83.4 ppm).
Care in Captivity
- Tank Size
Nothobranchius rachovii installation is typically easier than with other species of a similar size. You can take into account 2-3 litres of water for each fish when choosing the best aquarium for this killifish. A 5-gallon tank will hold six fish just fine, but larger fish should have more room to swim around. Even novice aquarium keepers can easily set up a tank for Nothobranchius rachovii. It is not necessary to have a large tank; mini tanks would also be acceptable as long as the water quality is monitored.
- Parameters of water
While they can adapt to a variety of water conditions, providing your Nothobranchius rachovii with appropriate water conditions will make them happier. While the ambient temperature ranges from 16 to 32 °C, you maintain a tank temperature of 20 to 23 °C.
Male Nothobranchius rachovii may have duller hue and appearance at lower temperatures, whereas females may live shorter lives in hotter water. Maintain a pH range of 6.0 to 7.5 and a water hardness range of 5 to 20 dGH. Regular partial water changes and tank cleaning are required to maintain the water’s highest quality. However, you need to avoid any significant water fluctuations.
- Tank Companions
Nothobranchius is best kept in groups of multiple females and one alpha male, according to tank mates. Conflict is possible, although there won’t be any fatal clashes. Keep the male to female ratio at 1:4, and you’re good to go.
Males can behave more quietly if there are no females. These disputes and altercations are all between men attempting to win the attention of women. However, you need both males and females for reproduction. If you want to install a rachovii community tank. Take into account some peaceful animals, such as guppies, pygmy cory, and others. Long-finned fish shouldn’t be kept in the same aquarium as this killifish because they can nip their fins.
- Diet
Nothobranchius requires active feeding because of its extremely high metabolic rate. Two times per day, you can give them small servings of live, frozen, or packaged food that they can consume in a matter of minutes. Avoid overfeeding them since leftovers could contaminate the water and raise the risk of bacterial infection.
Feeding them all at once in a huge quantity may also result in digestive and medical issues. The best potential diet for them typically consists of live things, such as brine shrimp and worms. Flake foods can be added to the diet as a supplement, but they shouldn’t take the place of live foods as the primary source of nutrients.
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