Scratched Inpa Tetra - Inpaichthys parauapiranga Fish Profile & Care Guide
Introduction
The Scratched Inpa Tetra (Inpaichthys parauapiranga), a recently discovered species in February 2024, is a fascinating addition to the aquarium world. Its striking six red-dotted longitudinal stripes along its flanks make it a unique and visually appealing species. Endemic to Brazil in South America, this stunning Tetra is rather easy to care for and makes an excellent addition to any well-maintained aquarium. Their peaceful and active nature makes them ideal companions for community tanks with other non-aggressive species.
Though Scratched Inpa Tetras have occasionally been mischaracterized as fin-nippers, this behaviour is typically avoided by housing them in groups of ten or more. Larger groups and visual barriers in the tank help foster a sense of security, reduce male aggression, and encourage vibrant colouration during displays of courtship or competition. When choosing tankmates, opt for small, peaceful species such as Corydoras Catfish, Pencilfish or small Dwarf Cichlids like Mikrogeophagus or Apistogramma. Rasboras, smaller Gouramis, and gentle Barbs are also compatible options.
Maintaining excellent water quality is vital, as Scratched Inpa Tetras are sensitive to elevated nitrate levels and fluctuations in water chemistry. A well-decorated aquarium with driftwood, moderate planting, and subdued lighting closely replicates their natural habitat, helping them feel secure. These tetras thrive in soft, acidic water conditions, mirroring the characteristics of their native environment.
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Sexual Dimorphism
Scratched Inpa Tetras are a recently described species, so there is little information on their sexual dimorphism; however, aquarists who have bred the species in captivity observed that males are slightly larger than females and possess a dark margin on the anal fin.
Quick Facts
| Scientific Name | Inpaichthys parauapiranga |
|---|---|
| Year Described | 2024 |
| Kingdom | Animalia |
| Classification | Actinopterygii |
| Order | Characiformes |
| Family | Characidae |
| Genus | Inpaichthys |
| Origins | Brazil |
| Approx Max Size | 4 cm |
| Temperament | Peaceful |
| Aquarium Level | Middle - Top |
| Difficulty | Beginner - Intermediate |
| Shoaling | Yes |
| Best kept as | Groups 10+ |
| Diet & Feeding | Omnivore |
| Reproduction | Egg Depositor |
| Average Lifespan | Up to 6 Years |
Water Parameters
| Water Type | Freshwater |
|---|---|
| pH | 5.5 - 7.0 |
| GH | 3 - 12 |
| ℉ | 73 - 79 |
|---|---|
| ℃ | 22 - 26 |
Natural Habitat
The Scratched Inpa Tetra is a freshwater fish species endemic to Brazil, South America, found explicitly in a tributary of the Rio Canamã within the Rio Aripuanã Basin, part of the upper Rio Madeira system in Mato Grosso State. The species inhabits narrow, shallow streams approximately 2 meters wide and 60 centimetres deep, characterized by clear, slow to moderately flowing water, sandy substrates, and abundant aquatic vegetation. This specialized habitat supports the species' ecological requirements and contributes to its limited distribution.
Breeding
Breeding Scratched Inpa Tetras in captivity is a straightforward process, especially with the proper setup and preparation. To raise a significant number of fry, it is advisable to use a dedicated breeding tank. This tank should have low lighting and include fine-leaved plants like Java moss or you can add spawning mops, which provide suitable surfaces for egg deposition.
Alternatively, the tank floor can be covered with a mesh grid, allowing eggs to fall through while preventing the adults from eating them. The breeding tank's water should be soft and acidic, with the temperature slightly elevated compared to their main aquarium. Filtration can be maintained with a small air-powered sponge filter to ensure gentle water movement.
Spawning is typically most successful in groups, ideally with six males and six females. Before introducing the fish to the breeding tank, condition them with a diet of live and frozen foods to promote optimal health and readiness for reproduction. Pair spawning is another effective method; in this case, males and females should be conditioned separately, and the healthiest, plump female and the most vibrantly coloured male should be selected for breeding.
Since adult fish are prone to consuming their eggs, removing them from the breeding tank immediately after spawning is essential. The eggs generally hatch within 24-48 hours, and the fry becomes free-swimming three to four days later. During this early stage, the fry should be fed with infusoria or similar tiny foods until they are large enough to eat microworms or baby brine shrimp.
Diet & Feeding
Scratched Inpa Tetras are not a finicky species regarding their dietary preferences. They have no special requirements and will readily consume most commercial dried foods like flakes, granules and pellets. To enhance their health and vibrant colouration, including small live and frozen foods in their diet, such as bloodworms, white mosquito larvae, daphnia, and brine shrimp, is crucial. A varied and balanced diet is a fundamental part of responsible fishkeeping, ensuring your fish thrive and supporting their growth and development.
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Published: 22 Jan 2025
Last Updated: 22 Jan 2025