Cobalt Blue Goby
Stiphodon semoni
Cobalt Blue Goby is a peaceful bottom-dwelling fish.
Save this fish or add it directly to one of your aquariums.
Need help with Cobalt Blue Goby?
Explore compatibility, care or problems using this guide and your aquarium’s conditions.
Quick facts
- Adult size
- ≤ 2" (≤ 5 cm)
- Aquarium size
- 16 US gal (60 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length
- Care level
- Beginner – Intermediate
- Temperament
- Peaceful
- Swimming zone
- Bottom dweller
- Temperature
- 72–82°F (22–28°C)
- pH
- 6.5–7.5
- GH
- 2–12 dGH
- KH
- 2–6 dKH
- Diet
- Omnivore
- Lifespan
- up to 5 years
Care requirements
Care level: Beginner – Intermediate.
Lifespan: up to 5 years.
Aquarium size and space needs
Minimum aquarium size: 16 US gal (60 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length. Plan the layout and stocking within that limit.
Water parameters
Suitable water: temperature 22–28 °C, pH 6.5–7.5, GH 2–12 dGH, KH 2–6 dKH.
Temperament and compatibility
Cobalt Blue Goby is peaceful and suits calm community fish.
Swimming zone and behavior
This fish uses the bottom area, so leave enough open substrate area for movement and feeding.
Feeding
As an omnivore, Cobalt Blue Goby should receive a varied diet rather than one repeated food type.
Provide abundant mature algae and biofilm-covered surfaces; supplemental food does not replace the grazing resource.
Before adding this fish
- Plan for an aquarium of 16 US gal (60 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length.
- Avoid aggressive or highly competitive fish.
- Offer a varied diet suited to this species’ documented feeding habits.
Similar fish profiles
Use these profiles to compare fish with similar care level, size, temperature range, or swimming behavior.
FAQ
How large does Cobalt Blue Goby get?
Cobalt Blue Goby reaches ≤ 2" (≤ 5 cm).
What aquarium size does Cobalt Blue Goby need?
Use an aquarium of at least 16 US gal (60 L) or larger / ≥ 23.6" (≥ 60 cm) minimum length.
Is Cobalt Blue Goby peaceful?
Yes. Cobalt Blue Goby is recorded as peaceful and is best planned with calm community fish that do not harass it or dominate the feeding area.
What temperature is suitable for Cobalt Blue Goby?
Keep it between 22 to 28 °C.
