The Giant Danio is a robust, incredibly active schooling fish native to fast-flowing streams in South Asia. Known for their striking blue and gold horizontal stripes, they are constantly in motion and require long tanks with strong water flow. Due to their boisterous nature, they make excellent 'dither fish' for mild-mannered cichlids but should not be kept with slow, shy, or long-finned species as they will easily outcompete them for food.
Giant Danio At a Glance
Giant Danio Tank Requirements
Will Giant Danio fit in your tank?
Care guides tell you what Giant Danio needs, the next question is whether your tank can safely provide it. Test Giant Danio against your tank size, maintenance needs, and the fish you already keep before you buy.
Giant Danio Water Parameters
Giant Danio Temperament & Compatibility
Giant Danio Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Standard
The standard wild-type Giant Danio. Must be kept in a school of at least 6 to prevent stress and nervous behavior. A tight-fitting lid is mandatory.
Differs in 1 trait from base species
Also known as: Wild Type, Blue and Gold
Albino / Golden
A commercially bred color morph lacking dark pigmentation, displaying a yellow/golden body with white or pinkish stripes. Care is identical to the standard form.
Differs in 1 trait from base species
Also known as: Albino Giant Danio, Golden Danio
Giant Danio Care Guide Summary
The Giant Danio, scientifically known as Devario aequipinnatus, belongs to the Cyprinids family group. Adults reach a maximum size of approximately 10 cm and have a fusiform body shape with a fast growth rate. Classified as mostly peaceful, this species primarily occupies the surface and mid-level zones of the aquarium and produces a medium level of biological waste.
To thrive, the Giant Danio requires a freshwater only aquarium with a minimum volume of 110 litres and a tank length of at least 90 cm. Water temperature should be maintained between 22°C and 28°C, with a pH range of 6–8 and a general hardness of 5–20 dGH. A high water flow is preferred.
With modest requirements and a forgiving temperament, the Giant Danio is an excellent choice for beginners and seasoned hobbyists alike. This species is available in 2 varieties: Standard and Albino / Golden. 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.
Giant Danio Habitat Setup
When setting up an aquarium for the Giant Danio, a high water flow best suits their natural preferences. Because this species occupies the surface and mid-level zones, the aquarium layout should prioritise adequate surface area with floating cover to make them feel secure near the waterline and open swimming space in the centre of the tank for free movement. Keepers should note that a tight-fitting lid is essential, as this species is a known jumper.
Giant Danio Compatibility Notes
Classified as mostly peaceful, the Giant Danio is a schooling species that feels most secure in a sizeable group, where natural shoaling behaviour reduces stress and brings out their best colours. When choosing tankmates, shy or slow-feeding tankmates may be outcompeted at feeding time and their energetic swimming style may stress more sedentary or timid species. Selecting tankmates that favour different water layers from the surface and mid-level zones can help reduce competition and territorial overlap.
Who Giant Danio Is Actually For
Giant Danio is best for a fishkeeper who wants a species that can settle into a calmer community setup and can provide a keeper who can commit to a proper group of at least 6. It suits keepers who want a profile-driven species choice without a long list of specialist setup demands.
The most common mistake is buying Giant Danio for looks first and only later discovering how its adult size, behavior, or bioload changes the whole tank plan. Another frequent problem is underestimating its social needs. A token pair or trio often behaves very differently from a real group.
Giant Danio Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Giant Danio.
30 Gallon Breeder
40 Gallon Breeder
55 Gallon Standard
60 Gallon Breeder
75 Gallon Standard
90 Gallon Standard
Show 10 more tank sizes
Frequently Asked Questions About Giant Danio
How big does Giant Danio get?
Giant Danio (Devario aequipinnatus) typically reaches a maximum adult size of approximately 10 cm. They have a fusiform body shape and a fast growth rate.
What tank size does Giant Danio need?
A minimum aquarium volume of 110 litres and a tank length of at least 90 cm are recommended for Giant Danio. This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Giant Danio need?
Giant Danio thrives in freshwater only conditions with a temperature range of 22–28°C, a pH between 6 and 8, and a general hardness of 5–20 dGH. A high water flow is preferred.
Is Giant Danio peaceful or aggressive?
Giant Danio is classified as mostly peaceful with an aggression score of 3 out of 10. They are generally well-suited to peaceful community tanks.
How many Giant Danio should be kept together?
Giant Danio is a schooling species and should be kept in groups of at least 6. Larger groups help distribute aggression and encourage natural schooling behaviour.
Does Giant Danio need a lid on the tank?
Yes. Giant Danio is a known jumper, and a tight-fitting lid or cover is essential to prevent escape. Even a small gap can be enough for a determined fish to leap out.
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Guidarium Editorial Desk
Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.
- Last reviewed
- April 28, 2026
- Last updated
- April 28, 2026
- Issues or corrections?
- Contact the editorial team
Top Tank Mates for Giant Danio
These fish are strong compatibility matches for Giant Danio based on water preferences, temperament, adult size, and tank behavior.
Spotted Hillstream Loach
Gastromyzon punctulatus
Ideal Tank MatesWhite Cheeked Goby
Rhinogobius duospilus
Ideal Tank MatesReticulated Stingray (Teacup Ray)
Potamotrygon orbignyi
Ideal Tank MatesRaspy River Stingray
Potamotrygon scobina
Ideal Tank MatesTandanus Catfish
Tandanus tandanus
Ideal Tank MatesPetricola Catfish
Synodontis petricola
Ideal Tank MatesPlants That Suit Giant Danio
These plants pair well with Giant Danio based on shared water preferences, layout fit, and how likely they are to hold up in the same aquarium.
African Water Fern
Bolbitis heudelotii
Boivin's Aponogeton
Aponogeton boivinianus
Capuron's Aponogeton
Aponogeton capuronii
Madagascar Lace Plant
Aponogeton madagascariensis
African Onion Plant
Crinum calamistratum
Afzel's Anubias
Anubias afzelii
Fish Similar to Giant Danio
Zebra Danio
Danio rerio
One of the most robust and active aquarium fish available. Native to South Asia, they are a model organism in science due to their genetics. They are extremely active top-level swimmers that must be kept in schools to prevent stress and fin-nipping. They prefer cooler, oxygen-rich water with a current.
Tiger Danio
Devario maetaengensis
The Tiger Danio is a striking, fast-swimming schooling fish endemic to the clear, fast-flowing headwaters of northern Thailand. Known for their bold vertical barring and highly energetic nature, they require specialized 'hillstream' setups with pristine, highly oxygenated water and strong flow. Due to their intense activity levels, they should not be kept with slow-moving or shy tank mates.
Pearl Danio
Danio albolineatus
A highly active, schooling cyprinid native to the clear, flowing streams of Southeast Asia. Known for their iridescent, pearlescent bodies that shimmer under aquarium lighting with hints of blue, pink, and orange. They are very hardy but require significant horizontal swimming space and a tight-fitting lid due to their notorious jumping ability.
Glowlight Danio
Danio choprae
A strikingly colorful and hyperactive nano fish native to the Irrawaddy River drainage in Myanmar. Named for its glowing orange/red horizontal bands and vertical barring. Despite their small size, they are incredibly fast, dynamic swimmers that require a long aquarium with ample swimming space. They must be kept in large schools and are notorious jumpers, so a tight-fitting lid is mandatory.
Rose Danio
Danio roseus
A lively and colorful schooling fish from Southeast Asia. Rose Danios are characterized by their pinkish-purple iridescence, which becomes especially vibrant in well-planted tanks with subdued lighting. Like all Danios, they are incredibly active swimmers and prolific jumpers, requiring a tight-fitting lid and a horizontally long tank to accommodate their energetic nature.
Mountain Rainbowfish
Melanotaenia monticola
A striking and active schooling fish endemic to the high-altitude, fast-flowing mountain streams of Papua New Guinea. Because of their natural habitat, they are unique among Rainbowfish for requiring significantly cooler, highly oxygenated water. They feature a blue-grey to greenish body with a distinct black mid-lateral stripe and coppery golden scale margins.