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.

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℃

Photos of the Hikari Danio

Hikari Danio
Hikari Danio

Natural Habitat

The Hikari Danio is endemic to the Tanintharyi River drainage, a tributary of the Tenasserim River system in southern Myanmar in Southeast Asia. Unfortunately, there is little information available about their natural habitat. However, we know that these Danios inhabit very clear, slow-flowing waters of streams and small rivers that are more than likely surrounded by rich forest.

These Danios have only recently been discovered and introduced into the hobby in 2002 and do not currently have a scientific name. These Danios were originally thought to be a subspecies of the Blue Danio. However, current DNA testing in the United States has shown that they are genetically separate.

What to feed the Hikari Danio

Hikari Danios are unfussy eaters in the aquarium and will accept most foods. However, it would be best to provide a good quality dried product such as flakes, micropellets or granules as the staple diet.

It would be good to remember that these Danios are pretty active and have high nutrient requirements, so, therefore, it would be best if you selected a dried food that will provide for their needs.

You will need to supplement their diet with small live, frozen or freeze-dried foods such as mosquito larvae, brine shrimp, and daphnia, as this will help your fish maintain their colour and keep them healthy.

These fish will fare better when offered food several times a day; however, only give them what they can eat in 3 minutes or less at each feeding.

How to sex the Hikari Danio

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.

How to breed the Hikari Danio

Hikari Danios are egg scatterers that spawn the same way as many other Danio species.

A separate breeding tank will be required if you wish to increase the amount of fry. The tank will need to be rather long and shallow, and the water needs to be slightly higher than the usual aquarium. It is recommended that you add java moss or fine-leaved plants to the tank so that the Danios have somewhere to scatter their eggs, or you can add marbles or pebbles on the bottom of the tank if plants are unavailable.

Before placing a pair or a group in the breeding tank, it would help if you conditioned them with plenty of live or frozen food; then, once the females are nice and plump, you should transfer them into the breeding tank. If conditions are to their liking, the female will release her eggs into the water, and the male will fertilise them.

Spawning is usually initiated by the first rays of morning sunlight hitting the tank glass. Once the eggs have been scattered, you should return the adults to the main aquarium; otherwise, they will consume the eggs and fry if given a chance.

The incubation period is temperature-dependent; however, it usually takes between 24 and 36 hours for them to hatch. The young will then become free-swimming a few days after that. Initially, it would be better to feed the fry with microworms or newly hatched brine shrimp until they are big enough to accept the same foods as the parents.

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: 16/02/2022 14:15:00