A stunning, specialized freshwater goby native to fast-flowing hill streams in Asia. Males display brilliant neon blue metallic coloration, while females are striped. They are specialized biofilm grazers ('Aufwuchs' eaters) and require mature tanks with established algae/biofilm stones. They are obligate stream dwellers requiring high oxygen and strong flow.
Neon Blue Goby At a Glance
Neon Blue Goby Tank Requirements
Will Neon Blue Goby fit in your tank?
Care guides tell you what Neon Blue Goby needs, the next question is whether your tank can safely provide it. Test Neon Blue Goby against your tank size, maintenance needs, and the fish you already keep before you buy.
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Neon Blue Goby Water Parameters
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Neon Blue Goby Temperament & Compatibility
Neon Blue Goby Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Male (Standard)
The striking neon blue form. Males are territorial over prime grazing stones and burrows. They display intensely to rivals but rarely cause physical harm. Best kept with multiple females.
Differs in 2 traits from base species
Also known as: Male
Female
Cream and black horizontal stripes. Distinctly different from males. Essential for the long-term health of males to encourage natural behavior. Very peaceful.
Differs in 2 traits from base species
Also known as: Female
Neon Blue Goby Care Guide Summary
The Neon Blue Goby, scientifically known as Stiphodon atropurpureus, belongs to the Gobies & Gudgeons family group. Adults reach a maximum size of approximately 5 cm and have a fusiform body shape with a moderate growth rate. Classified as mostly peaceful, this species primarily occupies the bottom zone of the aquarium and produces a low level of biological waste.
To thrive, the Neon Blue Goby requires a freshwater only aquarium with a minimum volume of 57 litres and a tank length of at least 60 cm. Water temperature should be maintained between 22°C and 28°C, with a pH range of 6.5–7.5 and a general hardness of 4–12 dGH. A high water flow is preferred.
Due to its specialist needs, the Neon Blue Goby is best suited for fishkeepers who can provide a carefully planned setup. This species is available in 2 varieties: Male (Standard) and Female. Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.
Neon Blue Goby Habitat Setup
When setting up an aquarium for the Neon Blue Goby, a high water flow best suits their natural preferences. Because this species occupies the bottom zone, the aquarium layout should prioritise sufficient floor space with hiding spots among rocks, wood, or dense planting. Useful additions include a sand substrate to accommodate their sifting behaviour, smooth gravel or rounded substrate to protect their sensitive barbels, and an established tank with natural algae growth, as they depend on it as a primary food source. Keepers should note that expect substrate disturbance, so lightweight décor should be secured.
Neon Blue Goby Compatibility Notes
Classified as mostly peaceful, the Neon Blue Goby is a social species that requires the company of its own kind to thrive. When choosing tankmates, conspecific aggression can be intense, especially in smaller tanks, territorial behaviour may cause issues if hiding spots or floor space are limited, and their energetic swimming style may stress more sedentary or timid species. Selecting tankmates that favour different water layers from the bottom zone can help reduce competition and territorial overlap.
Neon Blue Goby Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Neon Blue Goby.
15 Gallon Standard
20 Gallon High
20 Gallon Long
29 Gallon Standard
30 Gallon Breeder
36 Gallon Bowfront
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Frequently Asked Questions About Neon Blue Goby
How big does Neon Blue Goby get?
Neon Blue Goby (Stiphodon atropurpureus) typically reaches a maximum adult size of approximately 5 cm. They have a fusiform body shape and a moderate growth rate.
What tank size does Neon Blue Goby need?
A minimum aquarium volume of 57 litres and a tank length of at least 60 cm are recommended for Neon Blue Goby. This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Neon Blue Goby need?
Neon Blue Goby thrives in freshwater only conditions with a temperature range of 22–28°C, a pH between 6.5 and 7.5, and a general hardness of 4–12 dGH. A high water flow is preferred.
Is Neon Blue Goby peaceful or aggressive?
Neon Blue Goby is classified as mostly peaceful with an aggression score of 3 out of 10. They are generally well-suited to peaceful community tanks.
Can Neon Blue Goby live alone?
No, Neon Blue Goby should be kept in groups of at least 3 to reduce stress and encourage natural behaviour.
Does Neon Blue Goby have any special tank requirements?
Yes. Neon Blue Goby benefits from established algae (otocinclus), smooth gravel (sensitive barbels), and sand (sifters) in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.
Top Tank Mates for Neon Blue Goby
These fish are strong compatibility matches for Neon Blue Goby based on water preferences, temperament, adult size, and tank behavior.
Pygmy Rainbowfish
Melanotaenia pygmaea
Ideal Tank MatesParkinson's Rainbowfish
Melanotaenia parkinsoni
Ideal Tank MatesPacific Blue Eye
Pseudomugil signifer
Ideal Tank MatesOgilby's Rainbowfish
Melanotaenia ogilbyi
Ideal Tank MatesNorthern Mountain Swordtail
Xiphophorus nezahualcoyotl
Ideal Tank MatesPearl Danio
Danio albolineatus
Ideal Tank MatesPlants That Suit Neon Blue Goby
These plants pair well with Neon Blue Goby based on shared water preferences, layout fit, and how likely they are to hold up in the same aquarium.
African Water Fern
Bolbitis heudelotii
Afzel's Anubias
Anubias afzelii
Anubias Barteri
Anubias barteri
Belinda's Buce
Bucephalandra belindae
Buce Motleyana
Bucephalandra motleyana
Christmas Moss
Vesicularia montagnei
Fish Similar to Neon Blue Goby
Peacock Gudgeon
Tateurndina ocellicauda
A stunning, peaceful freshwater sleeper goby from Papua New Guinea. Known for their vibrant blue, red, and yellow colors, they are excellent nano-tank inhabitants. They are not true gobies (they lack fused pelvic fins) and are exclusively freshwater. They prefer slow-moving water, dense vegetation, and small caves (like PVC pipes or smooth stones) for spawning.
Neon Tetra
Paracheirodon innesi
One of the most iconic freshwater fish in the hobby, famous for its striking iridescent blue and red stripes. Originally from the blackwater streams of the Amazon basin, they prefer slightly cooler water than many tropical fish and must be kept in schools to thrive, display natural behaviors, and feel secure.
Bumblebee Goby (Brackish)
Brachygobius xanthozonus
A miniature, bottom-dwelling goby famous for its striking black and yellow stripes. While they are often sold as freshwater fish and can survive in it temporarily, they are highly susceptible to fungal infections in fresh water and truly require a brackish setup (SG 1.002-1.005) to thrive long-term. They are notoriously picky eaters, often ignoring flakes in favor of live or frozen foods (like bloodworms or brine shrimp).
Green Neon Tetra
Paracheirodon simulans
A striking, nano-sized schooling fish native to the blackwater habitats of the upper Rio Negro and Orinoco basins. Distinct from standard Neon Tetras, the Green Neon has a dominant, brilliant blue-green iridescent stripe running the entire length of its body, with little to no red pigmentation. They are extremely peaceful, somewhat timid, and require soft, acidic water with subdued lighting to thrive.
Blue Rainbowfish
Melanotaenia caerulea
A small, highly active, and colorful schooling fish native to the Kikori River system in Papua New Guinea. They are peaceful but require ample swimming space and a school of their own kind to thrive. Like most rainbowfish, they appreciate well-oxygenated, flowing water and are excellent jumpers. Males develop a striking blue hue with reddish horizontal stripes.
Neon Blue Cichlid
Paracyprichromis nigripinnis
A remarkably peaceful, schooling African cichlid native to the deep, rocky habitats of Lake Tanganyika. They are famous for their unique behavior of swimming closely aligned to vertical rock faces or even hanging upside down in cave overhangs. They are maternal mouthbrooders that absolutely require groups, hard/alkaline water, and plenty of vertical rockwork.