Max Size: 5cm

Hikari Danio (Danio sp. Hikari)

Hikari Danios are somewhat attractive fish that are peaceful, robust, reasonably easy to maintain and can adapt to a wide range of water parameters and temperatures, making them an excellent choice for both beginner aquarists as well as and the more experienced hobbyist. These Danios will also make ideal inhabitants of a well-furnished community aquarium.

You can house Hikari Danios with similarly sized community fish with a similar temperament. Ideal tankmates could include Tetras, other small Cyprinids, as well as Rainbowfish, livebearers, Loaches and Catfish. However, it would be best to avoid keeping these Danios with fish that have long, intricate finnage as they may get nipped.

Hikari Danios are a schooling species; therefore, it would be better to keep them in groups of at least six individuals, preferably more. Maintaining these Danios in more significant numbers will not only make the fish less anxious but result in a more compelling, natural-looking display. In addition, males will also reveal their best colours as they compete with each other for female attention.

Hikari Danios look much better in a well-planted aquarium with a darker substrate and may seem a little washed out in a setup with minimal decor. Having an arrangement designed to mimic a flowing stream or river with a substrate of gravel, different sized rocks or smooth stones would be perfect for these Danios.

You can use additional filter outlets or powerheads to provide some current; however, it would be best to avoid very fast currents because smaller Danios usually occupy more tranquil stretches of water in nature. You can also add hardy aquatic plants such as Bolbitis, Anubias and Microsorum as they can be attached to the decor, as well as some driftwood roots and branches.

The aquarium will need to be well oxygenated and well-filtered to imitate the cool, clean mountain streams that these Danios originate. In addition, the aquarium will need to have a very tight-fitting lid as these Danios are incredible jumpers and can fit through very small gaps.


Hikari Danio
Hikari Danio
Quick Facts
Scientific NameDanio sp. Hikari
Year Described2002
Other NamesHikari Yellow Danio, Hikari Blue Danio
Aquarium LevelMiddle
DifficultyBeginner - Intermediate
Best kept asGroups 6+
Lifespan3 - 5 years
Water Parameters
Water TypeFreshwater
PH6.5 - 7.5
GH2 - 18
TDS18 - 215
64 - 79℉
17.8 - 26.1℃


In the home aquarium, the Hikari 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 effortless to distinguish between the male and female Hikari Danio as both genders have different colours. The males have a yellowish-turquoise body that spreads into the fins, and the females have silvery-blue bodies with turquoise patches and hyaline fins with yellow hues.

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: 16/02/2022 12:15:49 - Updated: 11/08/2022 15:40:38