Pearl Danio

Pearl Danio

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Danio albolineatus

Note: Due
to variations within species, your item may not look identical to the image


Brachydanio albolineata, B. albolineatus, Danio
albolineata, D. pulcher, D. stoliczkae, D. tweediei, Nuria albolineata


Cambodia, China, Indonesia, Laos, Malaysia,
Myanmar, Thailand, and Vietnam. Introduced to Japan and Singapore.

Sexual Dimorphism

Mature females appear fuller bodied compared to
the streamlined males.

Maximum Size

6.5cm (2.6")

Water Parameters

Will acclimatise to a wide range of conditions.
pH: 6.0-8.0, dH: up to 20 degrees.


Subtropical: 18-25 deg C (64-77 deg F). High O2
level essential.


Community with no long-finned fish; Specialist


No special requirements




The Pearl Danio is known from the cool, fast-flowing and
highly oxygenated hillstreams of the lower Mekong. The vast majority of
specimens in the trade are captive bred and are very adaptable as far as water
conditions go. However, water temperature is important and the aquarium should
be maintained at a sub-tropical levels for best long-term health. The tank
should be well-filtered and well-oxygenated, with a decent amount of flow; the
Pearl Danios will be seen swimming against the current with obvious, natural
enjoyment. In order to view their best colours, the aquarium should have a dark
substrate, background and d?cor, with dense planting at the back and sides to
help them feel secure. An open swimming space should be left in the centre.
Pearl Danios are a peaceful shoaling species, and as such, must be maintained in
groups of 6 or more fish of their own kind. They make great ?dither fish? in
aquariums housing temperate current-loving fish such as many of the hillstream
loaches and torrent catfish. Ensure the tank has tight fitting coverslides as
these fish are accomplished jumpers.




Flake, micropellets, and small frozen foods such as
daphnia, mosquito larvae, brineshrimp etc.




An easy-to-breed egg scattering species that should be bred
in a separate aquarium with a substrate of marbles and large clumps of Java
moss. Water parameters should be neutral to slightly soft and acidic and the
temperature set towards the high end of the preferred range. Spawning often
takes place when the first rays of sunlight hit the aquarium in the morning. If
this does not occur, a small cool water change should trigger them. The parents
should be acclimatised back to the main aquarium after spawning has ceased, in
order to prevent them predating on the eggs. The eggs usually take around 36-48
hours to hatch (depending on temperature), with the young free-swimming a few
days later.