Max Size: 10cm

Giant Danio (Devario aequipinnatus)

The Giant Danio is an active and peaceful fish. It is the biggest of the danios and therefore requires a large aquarium with plenty of swimming room. A tight-fitting lid should always be placed on the aquarium housing these fish, as they like to jump.

Giant Danios fair better when kept in a group containing five or more fish. The Giant Danio is an excellent addition to a large community tank, especially if you're already raising big fish.

The Giant Danio is a gorgeous torpedo-shaped fish with a beautiful iridescent blue colouration that reflects a pale blue-green background as the fish swiftly changes direction. It displays gold splotches and stripes running lengthwise from the gills to the tail. The fins are grey and clear and rounded in shape, while the tail fin is forked.


Giant Danio
Giant Danio
Giant Danio
Giant Danio
Giant Danio
Giant Danio
Giant Danio
Quick Facts
Scientific NameDevario aequipinnatus
Other NamesGolden Giant Danio
OriginsBangladesh, Cambodia, Myanmar, Nepal, Pakistan, Thailand
Aquarium LevelMiddle - Top
DifficultyBeginner - Intermediate
Best kept asGroups 5+
Lifespan5 plus years
Water Parameters
Water TypeFreshwater
PH6.0 - 8.0
GH5 - 19
72 - 81℉
22.2 - 27.2℃


In the home aquarium, the Giant Danio will readily accept most good quality dried foods such as granules, flakes and sinking pellets. These modern food products have been developed to provide all adequate nutrition to maintain your fish's health and dietary requirements.

Providing additional foodstuffs such as live, frozen, and freeze-dried meals such as bloodworm, daphnia, and tubifex once or twice a week will provide additional benefits to your fish's health and well-being but is not a must for this fish.

It should be noted that bloodworms should only be given as an occasional treat and should not be used as the staple diet as they are difficult for fish to digest and can potentially cause blockages.

This fish is an omnivore in the wild, meaning it will consume some vegetable matter. Although most modern fish foods take this into account and include them in their products, you can still supplement your fish's diet with blanched vegetables such as spinach, broccoli, and zucchini. Ensure you do not overfeed your fish and remove any leftovers the following day.

Sexual Dimorphism

It is relatively hard to differentiate males from females. Still, typically the females tend to be larger than males, possess a more rounded abdomen, their golden lines are much more broken than the male, they are not as vibrantly coloured, and the lower jaw of the females does not seem to protrude as much as that of the male.

Frequently asked questions

How big do Giant Danios get?

Giant Danios can grow to a maximum length of 10 to 15 cm, making them one of the largest species in the Danio family.

How do you sex Giant Danios?

It is pretty easy to sex Giant Danios. Males usually have brighter colouring and are slimmer than females, and they also have straight stripes, whereas females stripes bend upwards at the tails base. In addition, the female's stomachs are usually plumper and more rounded than males.

What are suitable tankmates for Giant Danios?

Due to their size, you should not keep giant Danios with smaller fish species as they can swallow them. However, medium to large species such as Cichlids and Barbs, as well as larger bottom-dwelling fish, make excellent tankmates for Giant Danios. It would be best if you avoided Slow-moving, long-finned fish such as Bettas or Angelfish. Giant danios should always be kept in schools of six, preferably more; otherwise, fewer numbers regularly result in aggressive behaviour towards one another and other fish.

What do Giant Danios look like?

Giant Danios have iridescent gold bodies contrasted with steel-blue coloured stripes and spots moving lengthwise from the gills to the tail. Their fins are rounded and pale gold colour, and the tail fin is forked. You can find this species in several colour variations, with the more common being an albino form.

What is the natural habitat of the Giant Danio?

Giant Danios inhabit fast-flowing clear rivers and streams amongst hills at altitudes up to 1000 feet above sea level. Their substrate is typically gravel; they prefer water with a pH of between 6 and 8, water hardness between 5 and 19 GH, and a temperature range somewhere between 72 and 81 degrees Fahrenheit.

What should you feed your Giant Danios?

Giant Danios are omnivores that will accept a broad range of foods. Offer you fish good quality dried food such as flakes and granules alongside live and frozen fare such as brine shrimp, bloodworms, mosquito larvae or daphnia. However, if live or frozen foods are not available, you can substitute them with freeze-dried food.

Other Danios of interest

Assam Danio(Devario assamensis)
Barred Danio(Devario pathirana)
Bengal Danio(Devario devario)
Black Barred Danio(Danio absconditus)
Blood Tailed Danio(Devario annandalei)
Blue Danio(Danio kerri)
View all Danios
Date Added: 30/09/2020 - Updated: 11/08/2022 15:34:03