Max Size: 3.5cm

Transparent Blue Eye Rainbowfish (pseudomugil pellucidus)

Transparent Blue Eye Rainbowfish are peaceful, stunning and very rare. These fish are also relatively hardy, making them suitable for beginner aquarists and ideal members of a species only nano aquarium or a well-planted community aquarium alongside other species similar in size and temperament.

Transparent Blue Eye Rainbowfish are schooling fish in nature and exhibit their best colours when you keep them in a group of 8 or more individuals. However, you must maintain these fish in a heavily planted, spacious aquarium to ensure that dominant males do not overly harass subdominant males.

Ideal tankmates for the Transparent Blue Eye Rainbowfish could include other smaller Rainbowfish species such as the Ornate Rainbowfish and the Dwarf Neon Rainbowfish; however, avoid housing them with other Rainbowfish from the genus Pseudamugil otherwise, hybridisation may occur.

Other possible tankmates can include other peaceful fish species of similar size, disposition, and water requirements, such as smaller Barbs like the Five-Banded Barb, the Dwarf Golden Barb and Cherry Barbs, as well as Gobies and Micro Rasboras. Again, however, you should avoid maintaining them alongside much larger, more aggressive species; otherwise, they will become withdrawn and easily stressed.

It would be best to keep Transparent Blue Eye Rainbowfish in an aquarium with slow water flow as these fish originate from calmer waters. In addition, having a darker substrate would also benefit you as their colours will stand out more.

The Transparent Bue Eye Rainbowfish has a small, slender body, and its head is a silvery red that merges into the gill cover and stomach area. The rest of the body is relatively transparent. The swim bladder is translucent and seeable. In addition, these Rainbowfish also have a lateral line that can vary from red to yellow depending on the location that starts at the top, then changes to black and extends over the caudal peduncle and spreads out over the caudal fin in the form of thick black stripes across the mid-tail rays.

The first dorsal fin on this fish is matte black, with a slightly orange splash on the first dorsal fin ray. The second dorsal fin is dark, with the rays saturated with black pigment cells forming black bars, posteriorly edged with bright orange. In addition, they have thin black and orange bands that extend throughout the anal fin. The upper half of the caudal fin has splashes of orangey-yellow, and the margins of the scales are black above the lateral line and slightly black below the lateral line. Lastly, the anal fin stripe can differ from yellow to red in specific individuals.

Quick Facts
Scientific Namepseudomugil pellucidus
Year Described1998
Other NamesNone
Aquarium LevelMiddle - Top
DifficultyBeginner - Intermediate
Best kept asGroups 8+
Lifespan3 - 5 years
Water Parameters
Water TypeFreshwater
PH6.5 - 8.0
GH5 - 15
75 - 82℉
23.9 - 27.8℃

Photos of the Transparent Blue Eye Rainbowfish

Transparent Blue-eye Rainbowfish
Transparent Blue-eye Rainbowfish

Natural Habitat

Transparent Blue Eye Rainbowfish are endemic to the tributaries of the Mimika, Iwaka and Kopi Rivers in the Timika-Tembagapura region of West Papua in Indonesia in Southeast Asia. These Rainbowfish inhabit small shallow streams that typically flow slowly through dense rainforests, always in clear water that may be deeply discoloured by tannins. There is little to no aquatic plants at these locations.

The substrate in their habitat varies from sand to gravel and from rocks to pebbles. This species of Rainbowfish swims close to the water's surface, unlike the nearby Ivantsoff's Blue Eye, which is found in the middle zone or near the bottom.

What to feed the Transparent Blue Eye Rainbowfish

The Transparent Blue Eye Rainbowfish is not picky about their food. Therefore, it would be best to provide them with High-quality micropellets, flakes, granules and vegetable flakes as the primary source of their diet. It will help if you supplement this with frequent feedings of frozen, live, or freeze-dried food such as bloodworm, daphnia, mosquito larvae, brine shrimp, and tubifex, as this will keep your fish in good health and will bring out the fish's best colours.

How to sex the Transparent Blue Eye Rainbowfish

It is pretty straightforward to differentiate between the Transparent Blue Eye Rainbowfish male and female. The males are usually slightly larger than females and have much brighter colouration and more extended fins. In contrast, the females are somewhat fatter when carrying eggs are smaller and much duller than males.

How to breed the Transparent Blue Eye Rainbowfish

The Transparent Blue Eye Rainbowfish is an egg layer that presents no parental care and will often devour their eggs and fry if given the opportunity. However, in a well-decorated aquarium, some babies may survive.

Spawning will take place in slightly higher temperatures. The females will deposit a few eggs daily for numerous days, affixing them to aquatic vegetation or spawning mops. In addition. a single male will also breed with several females during a single day.

Spawning usually occurs during daylight hours, with a spurt of activity from late morning till early afternoon. Breeding can occur throughout the year in the aquarium if the water is kept at the same temperature.

There are two ways in which you can spawn these fish; the first involves separating a small group of 6 to 8 individuals or a single male and two or three females into a separate breeding tank with an air-powered sponge filter and a spawning medium such as nylon mops or aquatic moss. You will need to check this daily, and if you find any eggs, you will need to move them into a separate rearing tank for incubation and hatching.

The second would be maintaining a colony of adults in a more vast, fully-decorated setup that should allow some babies to survive if well-planted. However, the babies initially spend most of their time close to the water's surface. Therefore, it would be best to attach aquatic mosses to decor high up in the aquarium or use floating plants with long roots to produce the most promising results.

The second method is usually less practical, but a lot simpler and more reliable as established and planted aquariums facilitate stable water conditions. In addition, the microfauna that has grown in the aquarium can create a beneficial early food source for the fish fry.

The incubation period for these Rainbowfish is temperature-dependent but usually occurs between 7 and 15 days. After that, the babies can accept liquid fry food, fry powder, baby brine shrimp and microworm immediately.

It would be best to feed the babies at least twice a day, and then any uneaten food will need to be removed immediately and should not be allowed to accumulate in the rearing tank. If you do not remove the uneaten food, it can lead to a high mortality rate; therefore, small regular water changes are vital.

Other Rainbowfish of interest

Banded Rainbowfish(Melanotaenia trifasciata)
Boesemans Rainbowfish(Melanotaenia Boesemani)
Celebes Rainbowfish(Marosatherina ladigesi)
Dwarf Neon Rainbowfish(Melanotaenia praecox)
Forktail Blue Eye Rainbowfish(Pseudomugil furcatus)
Honey Blue Eye Rainbowfish(Pseudomugil Mellis)
View all Rainbowfish
Date Added: 15/03/2022 11:57:51 - Updated: 15/03/2022 12:13:24