Iriatherina Wernerii maintenance and breeding

The intriguing species Iriatherina Wernerii, also referred to as the threadfin rainbowfish, enlivens any aquarium with its vivid hues and delicate beauty. Because of its long, flowing fins and shimmering scales, this small, peaceful fish is well-liked by aquarists who value the elegance it brings to their tanks.

Iriatherina Wernerii requires some upkeep, but it’s well worth the work. They flourish in lushly planted aquariums with soft water currents, allowing them to exhibit their innate tendencies and socialize calmly with other small, non-aggressive fish. Knowing what kind of habitat and food they like will help you make sure they have a happy and healthy life in your aquarium.

Enhancing one’s skills as an aquarist can be a rewarding experience by breeding Iriatherina Wernerii. These fish can reproduce successfully in captivity with the correct care and conditions, providing an opportunity to witness their fascinating mating habits and the development of their fry. Raising these animals can be a new or experienced hobby for you, but

Aspect Details
Water Temperature 24-28°C (75-82°F)
pH Level 5.5-7.5
Tank Size Minimum 60 liters (15 gallons)
Diet Small live and frozen foods, high-quality flakes
Breeding Use a separate breeding tank with fine-leaved plants
Behavior Peaceful, best kept in groups

Preface

Rare visitors to our aquariums are representatives of the freshwater ecosystems of Australia and neighboring islands. In the USSR, aquarists kept hardly more than twenty species, even during the height of their popularity. There are now even fewer of them in Russia. In the meantime, genuine pearls can be found in this region among the numerous small fish, enough to adorn any aquarium. Without a doubt, Iriatherina Wernerii is one of these.

It was initially described in 1974 by Herman Meiken using specimens that were taken close to Merauke, near the Irian Jaya River in New Guinea. It was believed that this river served as the species’ sole habitat. Still, a fish resembling this one was found and described by Dr. G. Allen in the Jardine River in the northern part of Australia’s Cape York Peninsula in 1978. Iriatherina jardinensis is the species he gave it. Later on, it was discovered to be the Iriatherina werneri population in Australia.

There are two populations of the species – Australian and New Guinean, which differ in body color. The fish from Australia have a silvery background, while the individuals from New Guinea have an olive-brown body. Fish from the Australian population were imported to the USSR. The first report of breeding appeared in the August issue of T.F.H. for 1983., author H.J.Richter. In the USSR, the first mass breeding was carried out by L.Kuskov, and the first mention in literature dates back to 1986. I first saw Iriatherina werneri in 1986. in Leningrad at M.Zirling, but to acquire no fish. Only in 1988 I managed to exchange two females and one male for Hemigramus bleheri. At that time I could not find any literary data on the parameters for breeding. I had to experiment. Only much later, when breeding was already mastered, I got my hands on several magazines A.N.G.F.A. Fishes of Sahyl, which provided data on some water parameters. So the hardness fluctuated from 7 to 19 dH °, pH 5.2-7.6 temperature 23-30 ° C. It is interesting that Dr.G.Allen, describing the living conditions of I. werneri, gives very low pH values ​​​​of 5.2-5.8. This allows us to assume that the water in these places is extremely soft. He caught fish in the calm backwaters of the Jardine River rich in vegetation, mainly lilies.

These fish require thickets of vegetation, which should be placed on the sides and back wall of the aquarium to provide the fish with more comfort and to allow them to freely swim along the wide strip along the front wall. It’s also nice to have floating plants around. It is preferable to have dark soil. Stones and driftwood can also be utilized as décor. Water must also be regularly replaced by 25% to 30% and filtered and aerated at rates of up to two to three volumes per hour.

These are interestingly behaving, peaceful schooling fish. They are swift and very active, occasionally lounging in a shaded spot amidst the dense vegetation. They retreat into plant thickets when they’re scared, where they practically disappear. They enjoy playing in the water that is released from the filter. The upper and middle layers of the water are where irisatherina swim. They can live in a shared aquarium with any calm fish of a reasonable size, but they shouldn’t be housed with fish species that are active and capable of biting off the tips of the males’ long fin rays.

The gorgeous and serene species of threadfin rainbowfish, Iriatherina Wernerii, does best in well-kept aquariums with consistent water conditions and an abundance of vegetation. In order to ensure a healthy and lively aquarium, this article will walk you through the essentials of caring for and breeding these delicate fish. It will emphasize the significance of water quality, appropriate tank mates, and specific breeding practices.

For both novice and expert aquarists, caring for Iriatherina Wernerii, popularly known as the threadfin rainbowfish, can be a fulfilling experience. These elegant and delicate fish flourish in well-kept aquariums with consistent water quality and lots of swimming area.

Although breeding Iriatherina Wernerii can be difficult, it is possible with perseverance and the correct conditions. You can raise fry more successfully if you provide the right water parameters and a separate breeding tank. The fry will grow healthily if you feed them the right food.

Overall, Iriatherina Wernerii can add vivid color and lively activity to your aquarium if given the right care and attention. Their stunning appearance and elegant movements

Video on the topic

Iriatherina Werneri Fry.

Iriatherina Werneri Iriatherina Werneri

Fry of different ages Iriatherina wernerii.

Iriatherina wernerii. Breeding.

Iriatherina wernerii. Maintenance, breeding in an aquarium, care (Iriatherina werneri)

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Olga Vishnevskaya

Biologist by education, aquarist by vocation. Specialization — breeding and care of freshwater aquarium plants. Since childhood I have been fond of aquariums, constantly experimenting with creating biotopes and selecting flora for various types of aquariums. I am sure that green aquariums can transform any interior and improve the quality of life.

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