Banded Leporinus
Leporinus fasciatus
Min Tank Size
750L
Adult Size
30 cm
Lifespan
10 years
School Size
6+
About
Native to river systems throughout South America, including the Amazon and Orinoco basins, the Banded Leporinus is one of the most visually striking fish you can put in a large freshwater setup. The body is pale yellow to orange-yellow, crossed by bold black vertical bands that number around ten in adults. Juveniles start with fewer bands, and the pattern fills in as they grow. They carry themselves with a distinctive nose-down posture, almost like they're always inspecting the substrate, which makes them instantly recognizable even in a crowded tank.
These fish get big, regularly hitting 28 to 30 cm in captivity, and they need space to match. A 380-liter tank is the practical minimum, and bigger is always better. Water parameters are reasonably flexible for a South American species: they tolerate pH anywhere from 5.5 to 7.5 and don't require ultra-soft water, though they'll thrive in moderately soft to medium-hard conditions. Temperature should sit between 22 and 28 degrees. Good filtration and regular water changes matter a lot here because the bioload is substantial.
Diet-wise they're omnivores with a heavy lean toward plant material. Vegetable-based foods, spirulina wafers, blanched greens, and high-quality pellets should form the backbone of their diet, supplemented with occasional protein. Soft aquatic plants will be eaten or shredded without hesitation, so plan your hardscape accordingly.
Temperament is where most people get caught off guard. They're bold, active, and reliably hard on fins. Fast-moving, robust tankmates are workable, but anything slow or ornate is a target.
Browse the Shimmerscape community builds featuring Leporinus fasciatus to see how experienced keepers have designed tanks that give this species room to thrive without wrecking everything else in the water.
Water Parameters
Temperature
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Flow Preference
Keeping multiple Banded Leporinus together
Banded Leporinus are shoaling fish and need company of their own kind. Keep a group of at least 6. Smaller groups leave them stressed, washed-out in color, and prone to hiding.
Compatibility
The best tankmates are large, fast-moving fish that can hold their own and have no flowing fins to invite trouble. Think giant gourami, large barbs, silver dollars, robust cichlids like severums or green terrors, and similarly sized characins. Silver dollars are a particularly common pairing since they share water parameter preferences and are fast enough to avoid most harassment. Avoid angelfish, discus, bettas, fancy guppies, or anything with extended finnage. Corydoras and smaller bottom dwellers often get harassed too. Shrimp and small invertebrates will be eaten. The bigger the tank, the more these dynamics relax slightly, but the fin-nipping tendency doesn't disappear with space.
Commonly kept with
Species this one is most often paired withCommonly tried but avoid
Often paired, but shouldn't beCare Notes
The most common mistake is underestimating adult size. Fish sold at 5 or 6 cm look manageable, but they keep growing. A 200-liter tank that seemed fine for the first year becomes a problem by year two or three. Beyond size, plant choices trip people up constantly since any soft-leaved plant will be destroyed quickly. Robust filtration is non-negotiable given the bioload. Diet needs genuine variety with plant-based staples at the core. A tight-fitting lid is essential because they jump, and losing a fish to an uncovered tank is frustratingly common with this species.
Behavior & Aggression
Fin nipping is habitual, not situational. Any fish with long, flowing fins is going to get hit repeatedly, regardless of tank size or how well-fed the Leporinus is. Aggression toward conspecifics can be serious in smaller groups, where one individual tends to get bullied relentlessly. Keeping singly avoids conspecific conflict, but groups of five or more can work if the tank is genuinely large, as the aggression gets spread around. It's not a fish that terrorizes tankmates unprovoked, but it moves fast and nips opportunistically.
Things to Know
- Notorious fin nipper, avoid any tankmate with long or flowing fins.
- Can reach 30 cm, most tanks sold as suitable are far too small.
- Conspecific aggression is common, keep singly or in groups of 5 or more.
- Will eat and uproot soft-leaved plants, use tough or artificial plants only.
- Powerful jumper, requires a very secure, tight-fitting lid.
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