Freshwater Cobalt Blue Goby

Live FishSKU: B_GOBY

    Same day despatch when ordered before 2pm
    Usually arrives in 2-3 working days
    Orders over £50 sent by next working day courier

Sale price£5.99


Freshwater Blue Goby

Stiphodon atropurpureus is known by many different names, including the Dwarf neon goby, Freshwater goby, neon blue goby and cobalt blue goby. These little gobies originate from Asia (Japan, Malaysia and Taiwan) and are suitable for fresh water aquaria. Blue goby's are bottom dwellers, and will thrive in well planted aquariums. Top-feeding and mid-swimming fish are ideal tank mates. Freshwater gobies tend to spend their time lounging around on plant leaves and drift wood.

They are known as neon blue goby because they tend to colour-up to a lovely neon blue-purple hue when happy and settled. Some male varieties can display a whiter colouration, with females showing less colour, and sometimes even pinkish-red. More commonly, particularly while juvenile or settling in, they will display more black and white features than blue.

What are suitable tankmates for Freshwater Cobalt Blue Goby?
Freshwater Cobalt Blue Goby are peaceful fish, but can be territorial. Ideal tank mates include smaller community fish like Hill Stream loaches, Harlequin rasbora, Tetra and even Shrimp. They tend to stick to one area once settled in an aquarium.

How big do Freshwater Blue Goby grow?
A fully grown Freshwater Neon Blue Goby can reach around 5.5cm when fully grown. Most will achieve their distinctive blue coloration when close to this size. In the wild, blue gobies can be found in shallow, fast-flowing water.
Approx. supplied size: 1" / 2-3cm (small)
Maximum size: 2" / 5.5cm
Origin: Asia
Binomial name: Stiphodon atropurpureus
Family: Gobiidae
Temperament: Peaceful but territorial
Lighting requirement: Low
Ideal number kept together: 2+

Water conditions
Our conditions: pH 7.5, temp 25°C
Ideal pH: 6.5 - 7.5
Water flow: moderate to fast
Ideal temperature: 22-26°C

Ease of care
Moderate. No particular requirements but likes dark spaces around the tank. This can be achieved by the addition of dense planting and driftwood. Their small sizes leaves them vulnerable to larger fish, so it is better to keep with similar sized non-territorial species. Blue Goby fish are hardy but do require pristine clear water, so you will need to do regular water changes and ensure the tank is well-oxygenated at all times.

Omnivorous. Freshwater Goby are algae grazers, feeding from rocks and plants, but they will also take flakes and wafer. Supplement with bloodworm, brine shrimp and daphnia as a treat.


Egg layers. Hard to sex as the male and female look very similar, so separating a pair for the breeding process is not simple. The best way to get a pair of this fish is by buying a group of Freshwater Blue Neon goby and letting them pair up on their own. The male fish has a slightly darker shade of blue colour in its body than females.

Life Span
Freshwater Cobalt Blue Goby can live 1-2 years in perfect conditions.

For more information on general fishkeeping and our shipping procedures click here.

In stock orders placed before 2pm will be despatched on the same working day (not including palletised items, pond plants or fibreglass ponds).

Pre-orders are shipped once we have the stock available and will be shipped using the service chosen at checkout.

All services are working day services and do not include delivery on Saturdays and Sundays or public holidays as standard. Deliveries are usually Monday to Friday only, although some Royal Mail items may be delivered on weekends as standard if the service is available in your area.

 Packet/Courier items    
 Royal Mail (2-3 days)  £0.00-£49.99 £2.99
 Royal Mail Next Day (1-2 days)  £0.00-£49.99 £4.99
 Parcelforce 24 (1 day)  £0.00-£49.99 £7.99
 Parcelforce 24 (1 day) *  £50 and up FREE
 Pallets (booked in)  aquariums / bulky items  

 Pallets Standard (3-5 days)


 Pallets Express (1-2 days)

 - £39.99


*EXCLUDED ITEMS  extra delivery fees apply:
 Fibreglass Ponds (booked in)    

 Zone 1 (7-10 days)

 - £79.99
 Zone 2 (7-14 days)  - £149.99
 Zone 3 (7-21 days)  - £249.99
Pond Plants (direct from grower)
All pond plants (3-10 days) one-off fee regardless of order size/value £5.99


* Orders over £50 that are under 2kg may be sent by a Royal Mail Tracked 24 service.

Please see our full delivery information page and terms and conditions for detailed information on shipping policies and zones


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