Domino Tetra Care Guide
Neolebias powelli · Freshwater Fish
What Domino Tetra look like
Neolebias powelli, commonly known as the Domino Tetra, exhibits a diminutive and laterally compressed body that typically reaches a maximum adult size of approximately 1.5 inches (3.8 cm). The species is characterized by a pale, translucent body adorned with distinctive dark spots or blotches reminiscent of a domino pattern, providing effective camouflage within its natural blackwater habitat. Sexual dimorphism is subtle; males tend to display slightly more vibrant coloration and elongated dorsal fins compared to females. Defensive adaptations include a streamlined body shape that facilitates rapid movement and evasion from predators. The species possesses a well-defined lateral line system, which aids in detecting water movements, and its dentition is adapted for an omnivorous diet, featuring small, conical teeth suitable for grazing on both plant material and small invertebrates.
Behavior & temperament
Domino Tetras are typically found in small, loose aggregations, exhibiting a social structure that leans towards a non-hierarchical grouping rather than strict schooling behavior. They inhabit the mid to upper water column, often dwelling in shaded areas near submerged vegetation. Their breeding behavior is characterized as an egg scatterer, where females release eggs among plants, and males fertilize them externally. In terms of temperament, they are generally peaceful and exhibit low levels of aggression, making them suitable for community tanks; however, they may display shyness in the presence of larger or more boisterous tank mates.
Diet & feeding
In the wild, Domino Tetras are omnivorous, feeding on a varied diet that includes small invertebrates, plant matter, and detritus. In captivity, they thrive on high-quality flake foods, supplemented with live or frozen foods such as daphnia and brine shrimp to ensure a balanced diet.
Behind the name
Neolebias (new scale); powelli (named in honor of the collector of the species).
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Domino Tetra?
AquaLens identifies your fish and plants from a photo, tracks water chemistry, and flags health issues early — free on iOS and Android.
