Gold Shoulder Rosy Tetra (Hyphessobrycon paepkei)
Gold Shoulder Rosy Tetras are a very rare and sort after tetra for the keen hobbyist. These Tetras are peaceful, relatively hardy and undemanding and will acclimate to various water conditions. However, very hard water may prevent these fish from reaching their full potential in colour.
Like many other Tetras, planted aquariums with a darker substrate or subdued areas will provide the best environment for your fish and result in more vibrant colours and much-improved health. However, it may be beneficial to know that even though these fish are peaceful, Gold Shoulder Rosy Tetras may nip at very long-finned species such as Fancy Guppies or Bettas, especially if you keep them in inadequate numbers.
It would be better if you maintained Gold Shoulder Rosy Tetras in a group of six or more individuals. Not only will they do better when in the company of their own kind, but it will also result in a far more effective, natural-looking shoal and make your fish feel safer. In addition, you may also see some fascinating displays of fin flaring by rival males if you have several of them present in an aquarium.
Ideal tankmates for your Gold Shoulder Rosy Tetras would be other small and peaceful species such as Corydoras Catfish, Hatchetfish, Rasboras, smaller Loricariidae, small to medium-sized Barbs, Anabantoids and West African Dwarf Cichlids. In addition, because of their shape, you can also keep these Tetras with larger Cichlids such as Angelfish and Discus.
Unfortunately, Rosy Tetras can be easily frightened, so make sure you do not house them with much larger boisterous species.
|Scientific Name||Hyphessobrycon paepkei|
|Aquarium Level||Middle - Top|
|Difficulty||Beginner - Intermediate|
|Best kept as||Groups 6+|
|Lifespan||3 - 5 years|
|PH||5.5 - 7.5|
|GH||1 - 12|
|75 - 82℉|
23.9 - 27.8℃
Photos of the Gold Shoulder Rosy Tetra
Gold Shoulder Rosy Tetras are endemic to the Rio Demini Basin in Brazil in South America. These Tetras Primarily inhabit very vegetated forested areas where they can hide away from predators under plant cover and submerged roots. The water in their habitat is relatively sluggish, and it is usually stained a yellowish-brown colour from the release of tannins and other chemicals discharged from decaying organic material, leading to very acidic water.
What to feed the Gold Shoulder Rosy Tetra
In the aquarium, Gold Shoulder Rosy Tetras are easily fed as they are not picky eaters. However, it would be more beneficial for your fish if you provided them with a balanced diet. Their diet should consist of High quality dried foods such as flakes, micropellets and granules alongside live, frozen or freeze-dried foods such as white mosquito larvae, bloodworm, daphnia and vitamin-enriched brine shrimp.
How to sex the Gold Shoulder Rosy Tetra
It is effortless to distinguish the male from the female Gold Shoulder Rosy Tetras. Males will develop extended dorsal and anal fins and are usually larger, slimmer and more colourful than females.
How to breed the Gold Shoulder Rosy Tetra
To successfully breed Gold Shoulder Rosy Tetras and increase the yield of fry, you will need to set up a separate breeding tank. The tank will need to be dimly lit and contain bundles of fine-leaved plants such as java moss to give your fish somewhere to deposit their eggs. Spawning mops will work just as well.
Alternatively, you can cover the bottom of the tank with some mesh with large enough holes for the eggs to drop through but small enough so the adults cannot reach them.
The water should be soft and acidic and have a pH level of between 5.5 and 6.5, the water hardness will need to be between 1 and 5, and the temperature should be between 80 and 84 degrees Fahrenheit. In addition, filtering the water through peat is helpful, as is the use of RO water. Lastly, the tank will require a small air-powered sponge filter to provide a gentle current.
You can spawn Rosy Tetras in a group, with half a dozen individuals of each sex being an ideal number. Ensure you condition your group with plenty of small live or frozen foods, and spawning should not bestow too many problems.
Alternatively, you can spawn your fish in pairs. The fish are conditioned in female and male groups in separate tanks. Once the females are noticeably full of eggs and the males display their best colours, select the broadest female and best-coloured male and transfer them into the breeding tank that night. Your fish should then spawn the following morning.
In either situation, the adults will consume their eggs if given a chance; therefore, you will need to separate the eggs as soon as you spot any.
The eggs will usually hatch between 24 and 36 hours later, and the fry will become free swimming around five days after that. It would be best to feed the fry on an infusoria type food for a few days until they are big enough to take baby brine shrimp or microworm.
The eggs and fry are sensitive to light in the early stages of life, and you should keep the tank in darkness if possible.