Blue hana goby
Ptereleotris hanae
Also known as Filamented Dartfish, Lyretail Dartfish, Blue Hana Dartfish, Filamented Gudgeon Goby
SaltwaterFish
Care at a glance
- Temperature
- 73–81°F
- 23–27°C
- pH
- 8.1–8.4
- Adult size
- 4.7 in
- 12 cm
- Minimum tank
- 40 gal
- 150 L
- Temperament
- Peaceful
- Social behavior
- Social
- Swim level
- Middle
- Difficulty
- Easy
- Breeding
- No record
- Rarity
- Common
- Reef safe
- Reef safe
- Family
- Ptereleotridae
- Origin
- Native to the western Pacific from Japan south through Indonesia, hovering over sand near reef bases and burrows.
Overview
Provide a 150 litre or larger reef tank with sand and rock and a very tight lid, since dartfish are champion jumpers, kept at 23 to 27 C and pH 8.1 to 8.4. It is reef safe and eats zooplankton, so feed mysis, enriched brine shrimp, and pods. It is peaceful and shy at first, and it can be kept singly or in a small group in a larger tank with enough burrow sites.
In the wild
The blue hana goby is a pale blue dartfish with iridescent blue face markings and long trailing filaments on the tail. It hovers in open water just above a sand burrow, snapping at plankton and dropping into the burrow when startled. It is a graceful, active swimmer that likes some current. Long tail streamers give it the alternate name filamented dartfish.
Good to know
Ptereleotris hanae is a dartfish in the family Ptereleotridae. The trailing caudal filaments, usually two to six of them, are a distinctive feature of this species. Like other dartfish it shelters in a sand burrow that it may share with a partner.
Did you know
The long filaments streaming from its tail flutter as it hovers, which is how it earned the name filamented dartfish.
Weekly picks
Tank mates
Blue hana goby is a peaceful, social species that keeps to the middle. These picks share a community profile with it, are safe together in both directions, and overlap on water type, temperature and pH.

Fire shrimp
Lysmata debelius
Saltwater2.4 in (6 cm) · 20 gal (75 L)72–79°F (22–26°C)
Ring cowrie
Monetaria annulus
Saltwater1.2 in (3 cm) · 20 gal (75 L)75–81°F (24–27°C)
Adorned wrasse
Halichoeres cosmetus
Saltwater5.1 in (13 cm) · 50 gal (190 L)73–81°F (23–27°C)
Yellowstriped cardinalfish
Ostorhinchus cyanosoma
Saltwater3.1 in (8 cm) · 30 gal (114 L)72–79°F (22–26°C)
Skunk cleaner shrimp
Lysmata amboinensis
Saltwater2.4 in (6 cm) · 20 gal (75 L)73–81°F (23–27°C)
Fighting conch
Strombus alatus
Saltwater3.1 in (8 cm) · 20 gal (75 L)75–81°F (24–27°C)
Common questions
What size tank does a Blue hana goby need?
A Blue hana goby needs at least 40 gal (150 L). It spends most of its time in the middle.
What temperature and pH does a Blue hana goby need?
A Blue hana goby is comfortable at 73–81°F (23–27°C) with a pH of 8.1–8.4.
How big does a Blue hana goby get?
An adult Blue hana goby reaches about 4.7 in (12 cm).
Related species
4.7 in (12 cm)29 gal (110 L)72–79°F (22–26°C)Zebra dartfish
Ptereleotris zebra
4.7 in (12 cm) · 29 gal (110 L)
5.1 in (13 cm)29 gal (110 L)72–79°F (22–26°C)Blue gudgeon dartfish
Ptereleotris heteroptera
5.1 in (13 cm) · 29 gal (110 L)
5.5 in (14 cm)29 gal (110 L)72–79°F (22–26°C)Scissortail dartfish
Ptereleotris evides
5.5 in (14 cm) · 29 gal (110 L)
4.7 in (12 cm)53 gal (200 L)72–79°F (22–26°C)Blue-eye cardinalfish
Ostorhinchus compressus
4.7 in (12 cm) · 53 gal (200 L)
4.7 in (12 cm)75 gal (285 L)75–81°F (24–27°C)Evansi anthias
Pseudanthias evansi
4.7 in (12 cm) · 75 gal (285 L)
4.7 in (12 cm)90 gal (340 L)72–79°F (22–26°C)Exquisite fairy wrasse
Cirrhilabrus exquisitus
4.7 in (12 cm) · 90 gal (340 L)
