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Goby – Black Scissortail Dartfish
- Black Scissortail Dartfish (Ptereleotris evides), also known as the Black Goby, is a sleek and elegant marine fish known for its elongated body and distinctive black tail that splits like a pair of scissors.
- The Black Scissortail Dartfish thrives in stable water conditions with a temperature range of 72°F to 80°F, pH levels between 8.1 to 8.4, and salinity of 1.020 to 1.025.
- Reaching a maximum size of up to 5 inches, this peaceful, schooling fish adds a touch of grace and activity to reef aquariums.
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Introduction: Welcome to the fascinating world of the Black Scissortail Dartfish, a sleek and elegant marine species known for its elongated body and graceful swimming patterns. Scientifically known as Ptereleotris evides, this dartfish is a popular choice among marine aquarists for its striking appearance and peaceful demeanor. Originating from the Indo-Pacific region, the Black Scissortail Dartfish adds a dynamic and calming presence to any saltwater aquarium.
Scientific Name: The Black Scissortail Dartfish is scientifically referred to as Ptereleotris evides. It is also commonly known as the Scissortail Goby, highlighting its distinctive tail shape and darting swimming style.
Water Quality and Temperature: To replicate the natural reef environment of the Black Scissortail Dartfish, maintain the following water parameters:
- Temperature: Keep the water temperature between 72°F to 80°F (22°C to 27°C) for optimal health.
- pH Level: Aim for a pH level between 8.1 and 8.4, which reflects their natural oceanic habitat.
- Salinity: Maintain a specific gravity of 1.020 to 1.025 to ensure a stable and comfortable environment.
- KH Level: Keep the carbonate hardness (KH) within the range of 8 to 12 dKH to support healthy water chemistry.
Feeding: The Black Scissortail Dartfish is carnivorous and enjoys a varied diet:
- Flake Foods: Offer high-quality marine flake foods that cater to carnivorous fish as a staple part of their diet.
- Frozen Foods: Provide frozen mysis shrimp, brine shrimp, and finely chopped seafood to meet their protein needs.
- Live Foods: Occasionally, offer live foods like copepods or small marine worms to stimulate their natural hunting instincts.
- Pellets: Nutrient-rich marine pellets are also suitable and help ensure a balanced diet.
Tank Mates: The Black Scissortail Dartfish is a peaceful species that thrives in community settings. It coexists well with other non-aggressive marine fish, such as clownfish, blennies, and other gobies. However, it should not be housed with overly aggressive species that may stress or outcompete it for food. This dartfish is also known to school with other members of its species, making it an excellent choice for a small group in a larger tank.
Substrates and Tank Decorations: For substrates, use a sandy substrate to replicate the natural environment of the Black Scissortail Dartfish. Decorate the tank with live rock formations that provide plenty of hiding spots and swimming areas. These fish prefer to have access to caves and crevices where they can retreat when threatened or resting, and they appreciate an open space for their darting swimming patterns.
Suitable Plants: While the Black Scissortail Dartfish does not specifically require plants, incorporating marine macroalgae like Caulerpa or Halimeda can enhance the natural aesthetics of the aquarium and provide additional cover.
Sexing: Sexing the Black Scissortail Dartfish is challenging, as males and females are visually similar. However, slight differences in size and body shape may be observed, with males occasionally being slightly larger or more slender than females.
Breeding: Breeding the Black Scissortail Dartfish in captivity is rare and difficult due to the specific conditions required. If breeding occurs, the pair will typically choose a hidden spot within the live rock to deposit eggs. The male may guard the eggs until they hatch, but raising the fry requires specialized care, including feeding them microscopic plankton or rotifers.
Maximum Size and Longevity: The Black Scissortail Dartfish can grow up to 5 inches (13 cm) in length. With proper care, they can live up to 5 years or more, bringing long-term enjoyment and beauty to your marine aquarium.
General Information: The Black Scissortail Dartfish is admired for its slender, streamlined body and distinctive black tail, which it uses to make quick, darting movements in the water. Its peaceful nature and compatibility with other community fish make it a great addition to most saltwater aquariums, especially those looking to add a touch of elegance and activity.
A Fun Fact: The Black Scissortail Dartfish is known for its habit of darting into hiding spots when startled, making use of its long, slender body to quickly disappear into crevices. Despite their occasional shyness, these fish are active swimmers and often seen gracefully gliding through the water when they feel secure in their environment.
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