
Source: Wikimedia Commons
Pholidichthys leucotaenia
A goby with fascinating tunnel-digging behavior. Groups build complex burrow systems in sand.
The engineer goby (Pholidichthys leucotaenia) is an elongated marine fish of the family Pholidichthyidae found on reef and rubble substrate in the western Pacific Ocean. Juveniles display bold yellow-and-black banding that mimics venomous sea snakes for protection, while adults develop a pattern of white longitudinal stripes — a striking ontogenetic transformation. True to its common name, the species is an inveterate burrower, excavating complex tunnel networks through the sandy substrate. Groups kept together construct impressive communal burrow systems, providing endlessly fascinating viewing. A deep sand bed of at least 10 cm is mandatory for natural burrowing behavior. Adults can reach 20–30 cm; a 90-litre or larger aquarium is recommended. Omnivorous and robust, it readily accepts a wide variety of prepared foods.
The Engineer Goby lives 8-12 years.
The Engineer Goby grows to 20-30cm.
The ideal water temperature for the Engineer Goby is 22〜26℃.
Origin
Coral reef and sandy rubble substrates of the western Pacific Ocean
Lifespan
8-12 years
Size
20-30cm
Sources: LiveAquaria
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Sources: CITES Appendices (species not listed) / Ministry of the Environment Specified Animal List / Ministry of the Environment: List of Designated Invasive Species
Regulations may change. Always verify the latest information with the relevant authorities.
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Temperature
23〜26℃
Frozen food, Artificial feed
Deep sand bed (10cm+) required
Tunneling may disrupt aquascape layout
Adults reach 20–30cm, so a tank of 90L or more is recommended. Kept in a group, they build an extensive tunnel system.
An omnivorous, hardy fish that eats frozen and prepared foods alike. Weaning is rarely a problem.
Peaceful and easy to keep with other fish. Lifespan is a long 8–12 years, and the juvenile stripes change as it grows.
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
The ideal temperature for Engineer Goby is 22〜26℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Engineer Goby is 8-12 years. With proper care and nutrition, they can live a long and healthy life.
Engineer Goby typically reaches 20-30cm as an adult. Size may vary depending on care conditions and individual genetics.
Engineer Goby feeds on: Frozen food, Artificial feed. Aim for a balanced diet with appropriate feeding frequency.
The price of Engineer Goby varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: June 23, 2026