| Species | Fish |
|---|---|
| Origin | Brazil, Colombia, Venezuela (Upper Orinoco and Rio Negro) |
| Size Category | Nano |
| Category | Fish |
| Original Purpose | Ornamental |
| Body Length | 4–5 cm |
|---|---|
| Lifespan | 2–5 years |
| Senior Age Threshold | 4 years |
| Exercise Needs | Intermediate care level |
|---|---|
| Grooming | Omnivore |
| Annual Exam Focus | Compatible: Corydoras, Hatchetfish, Pencilfish, Otocinclus, Bristlenose Plecos, peaceful dwarf cichlids (Apistogramma, Rams), peaceful Betta |
| Routine Care | Incompatible: Large cichlids, Angelfish (if tetras are small), Discus (if tetras are small), aggressive fin-nippers |
| Condition | Onset Stage | Risk | Hereditary | Screening |
|---|---|---|---|---|
| Neon Tetra Disease (Pleistophora hyphessobryconis) | adult | high | No | N/A |
| Columnaris (Cotton Wool Disease) | adult | high | No | N/A |
| Fin Rot | adult | medium | No | N/A |
| Ich (White Spot Disease) | adult | medium | No | N/A |
| CHIC Required Tests | Difficult, egg scatterer, requires very soft acidic water and darkness |
|---|---|
| Recommended DNA Tests | Paracheirodon axelrodi |
| Water Temperature | 23-29°C |
|---|---|
| pH Range | pH 4-7.5 |
| Water Type & Tank | Freshwater, Min tank: 56L |
| Diet | Omnivore |
| Common Issues | Difficulty: Intermediate. Temperament: Peaceful, schooling |
| Locomotion | Schooling, midwater swimming, hiding in vegetation, active during day, resting near bottom at night |
|---|---|
| Social | Peaceful, schooling |
| Stress/Displacement | Loss of coloration, fading of red/blue stripes, hiding, erratic swimming, isolation from school, rapid breathing |
| AI-Trainable Signals | Color pattern changes, lateral stripe fading, erratic swimming, head-down swimming, twitching, spine curvature (S-shape), isolation from school |
|---|---|
| Context-Dependent Vocalizations | Loss of coloration, fading of red/blue stripes, hiding, erratic swimming, isolation from school, rapid breathing |
| Interspecies Communication | Water type: Freshwater, pH: 4-7.5 |