More info
Datasheet
| Minimum Tank Size | 100 litres / 26.42 US gallons |
| Maximum Size | 14.0cm / 5.51inches |
| Reef Compatible | Always reef safe |
| Temperament | Docile |
| Temperature | 22.2°C / 71.96°F - 25.6°C / 78.08°F |
| Specific Gravity | 1.020-1.025 |
| Carbonate Hardness | 8-12 |
| pH | 8.1-8.4 |
General Description
The Blacktail goby, also known as Tail-spot dart-goby, Spot-tail dartfish, Spot-tail hovergoby, Indigo dartfish, or Pale gudgeon, belongs to the Microdesmidae family, specifically Ptereleotris heteroptera. These fish are easily recognizable by their torpedo-like shape and are typically found in the Indo-Pacific region, spanning from the Red Sea and East Africa to the Hawaiian and Society Islands.
Aquarium Suitability
With a temperament described as docile, the Blacktail goby is considered suitable for aquariums with care. They are known to be shy and may require space away from more aggressive tankmates to thrive successfully. It is recommended to keep them in pairs, preferably one male and one female, to promote a comfortable environment.
Demands, Care and Hardiness
The Blacktail goby falls under the category of average hardiness, requiring a minimum tank size of 100 liters. These fish prefer a stable environment with recommended water conditions including a temperature range of 22.2-25.6°C, a pH of 8.1-8.4, a specific gravity of 1.020-1.025, and a carbonate hardness (KH) of 8-12. They may initially hide upon introduction to a new tank, so providing ample hiding spaces is crucial for their well-being.
Reef Suitability
Blacktail gobies are categorized as always reef safe, making them suitable inhabitants for reef aquariums. Their reef compatibility stems from their docile nature and preference for peaceful tankmates.
Aquarium Setup
When setting up an aquarium for Blacktail gobies, it is essential to provide hiding spots as these fish do not dig their own burrows. Utilizing 3/4" PVC pipes can create suitable hiding places with larger chambers and multiple exits, mimicking their natural habitat. Dimming the aquarium lights initially can help the fish acclimate peacefully.
Behaviour
These fish exhibit docile behavior and may initially hide when placed in a new environment. It is essential not to disturb them during this acclimation period to ensure a smoother transition.
Feeding and Diet
Blacktail gobies require frequent feeding, especially when first introduced to the tank. Their diet typically consists of small crustaceans like krill, mysis, and artemia, as well as zooplankton such as Cyclops and pods.
Habitat and Distribution
In their natural habitat, Blacktail gobies are found in various regions, including the Red Sea, East Africa, the Hawaiian Islands, and parts of Micronesia. They prefer locations with ample hiding spots and are known to inhabit reef environments.