Cobalt Blue Goby

Gobiiformes sp.

Cobalt Blue Goby (Gobiiformes sp.) — Varies care, Peaceful, under Other. Minimum tank in the app: 13.2 US gal min; aim for 68–79°F and pH 6.5–7.5. The Cobalt Blue Goby is ideal for aquarists seeking a dynamic, semi-aggressive species that thrives in a structured environment.

Cobalt Blue Goby (Gobiiformes sp.) in a planted freshwater aquarium
Care levelVaries
TemperamentPeaceful
Min tank size13.2 US gal min
pH range6.5–7.5
Temperature68–79°F
Max size1.8 in (4.5 cm)
Captive lifespan3–7 years
SchoolingNo

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Asia

  • East & Southeast Asia

Regional colours match the stocking calculator’s origin map.

Cobalt Blue Goby Tank Setup

To create an optimal environment, incorporate plenty of hiding spaces using rocks, driftwood, and plants to encourage natural behaviours. Maintain moderate water flow and a fine substrate for burrowing, while ensuring lighting is not too harsh to promote comfort and reduce stress.

What Do Cobalt Blue Gobys Eat?

As omnivores, they have a moderate feeding speed and can compete for food, especially if not adequately provided. Ensure a varied diet to maintain their vibrant coloration and overall health, as nutritional deficiencies can lead to lackluster appearance and weak immune response.

Cobalt Blue Goby Tank Mates

Best suited with similarly-sized, non-aggressive species that occupy different swim zones. Avoid pairing with overly boisterous or aggressive species that may stress the Goby. Intraspecies, they can be kept alone or in small groups, but watch for territorial disputes in confined spaces.

Are Cobalt Blue Gobys Good for Beginners?

Care demand varies with setup and individual fish; use the numbers above as your baseline. A common error is underestimating their space needs; a cramped environment can exacerbate aggression and lead to stress-related health issues. neglecting water quality or incompatible tank mates can trigger aggressive behaviour or sickness.

Building a community? Run the full list through the stocking calculator before you add anything else.

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