Datnioides qadrifasciatus 7 - (Datnioides quadrifasciatus) — 7-10cm

Overview

Freshwater fish UK enthusiasts seeking a commanding predatory centerpiece will find few species as visually striking as Datnioides quadrifasciatus. Commonly known as the four-barred tiger perch or tiger datnoid, this powerful carnivore originates from the Mekong and Chao Phraya river systems of Southeast Asia. The species earns its "tiger" designation from the bold, vertical black bars that contrast dramatically against a silver-gold body, creating an unmistakable profile in any large aquarium. Available for sale UK in juvenile sizes of 6-10cm, this impressive fish reaches up to 40cm, demanding substantial space, specialist care, and careful tankmate selection from experienced aquarists prepared for a long-term commitment.

Appearance

Datnioides quadrifasciatus showcases a laterally compressed, deep-bodied form with a pronounced hump developing on mature specimens. Four broad, vertical black bars cross the body from dorsal to ventral surfaces—the first through the eye, the remaining three spaced evenly along the flanks. The base coloration ranges from silver to golden-yellow depending on mood, diet, and water conditions. Large, forward-facing eyes provide excellent binocular vision for ambush hunting. The dorsal fin features strong spines, and all fins are semi-transparent with dark edging. Juveniles display crisper, more defined barring that may blur slightly as the fish matures. Stress or poor water quality causes the bars to fade and the body to darken, making coloration an excellent health indicator.

Natural Habitat

This species inhabits large, slow-moving rivers, flooded forests, and deep pools throughout the Mekong and Chao Phraya drainages in Thailand, Cambodia, Laos, and Vietnam. Datnioides quadrifasciatus prefers areas with submerged timber, root systems, and overhanging vegetation that provide ambush points for hunting. The water is typically warm, well-oxygenated, and ranges from clear to moderately turbid. During the dry season, fish concentrate in deeper channels and lagoons, while floods disperse them into temporarily inundated forest and grassland areas. The species occupies mid-water and lower regions, using cover to stalk prey fish, crustaceans, and aquatic insects. Natural water chemistry tends toward soft and slightly acidic, though the fish tolerates moderate hardness in healthy, stable conditions.

Aquarium Setup

A minimum 600-litre aquarium with dimensions emphasizing length and depth over height provides appropriate space for this active predator. Use fine sand or smooth river rock substrate to prevent barbel damage, and arrange large pieces of driftwood and rock to create visual barriers and territories. Tiger datnoids appreciate subdued lighting and the security of shadowed areas, so incorporate floating plants or strategically positioned wood to diffuse bright light. Maintain open swimming areas alongside structured zones, as the species alternates between cruising and stationary ambush postures. Avoid sharp decorations or rough surfaces that could injure the fish during rapid movements. A tight-fitting lid is essential—startled specimens may jump. Ensure all equipment is robust and securely installed, as this powerful fish can dislodge poorly positioned items.

Water Parameters

Maintain tropical temperatures between 24-30°C, with most aquarists finding 26-28°C ideal for long-term health. The species tolerates slightly higher temperatures but requires excellent oxygenation at the upper end of the range. pH should remain between 6.0-7.5, with 6.5-7.0 representing optimal conditions. Water hardness can range from soft to moderately hard without issue, provided parameters remain stable. Ammonia and nitrite must be undetectable, while nitrates should stay below 30 ppm through efficient biological filtration and weekly water changes of 30-40%. Strong current is not necessary, but good water movement and surface agitation ensure adequate oxygen levels. The species proves sensitive to abrupt changes, so maintain consistency and perform gradual adjustments when necessary.

Feeding

Datnioides quadrifasciatus is an obligate carnivore requiring a varied diet of meaty foods. Offer high-quality sinking carnivore pellets as the dietary foundation, supplemented with frozen prawns, mussels, krill, cockles, and occasional earthworms. Live or frozen river shrimp prove particularly relished. Avoid long-term reliance on feeder fish, which provide poor nutrition and risk disease transmission. Feed juveniles once daily, transitioning to every other day as the fish matures. This species can be shy or hesitant initially, especially in brightly lit or high-traffic tanks, so patience during acclimation is essential. Once settled, most specimens become bold feeders. Ensure all tankmates can compete during feeding, as tiger datnoids may dominate slower fish. Remove uneaten food promptly to maintain water quality.

Behaviour

Tiger datnoids exhibit classic ambush predator behavior, spending long periods motionless near cover before striking with explosive speed. Juveniles may display more active swimming and curiosity, while adults become increasingly sedentary except during feeding. The species is generally semi-aggressive rather than outright hostile—it rarely attacks fish too large to swallow, but smaller tankmates will be consumed opportunistically. Intraspecific aggression occurs if space is insufficient or if multiple males are housed together without adequate visual barriers. Most individuals are crepuscular, showing heightened activity during dawn and dusk. Once acclimated, they often position themselves prominently in the aquarium and may approach the glass to observe their keeper, displaying considerable intelligence and personality. Stress manifests as color loss, erratic swimming, or prolonged hiding, signaling a need to reassess tank conditions or companions.

Tank Mates

Selecting compatible tankmates requires careful consideration of size, temperament, and feeding behavior. Only large, robust species that cannot be swallowed and do not provoke the datnoid belong in the same system. Suitable companions include large catfish (Pangasius, large Synodontis, or armored plecos), large barbs, silver dollars, and other similarly sized, sturdy fish. Avoid small or slow-moving species, shrimp, and crabs, all of which will be viewed as prey. Fin-nippers and highly aggressive cichlids should be excluded, as they may harass the datnoid or provoke stress-related health issues. Territorial conflicts can arise with other predatory species in undersized tanks, so provide ample space and visual breaks. Many experienced keepers maintain Datnioides quadrifasciatus in species-only setups or with minimal, carefully chosen companions to eliminate competition and stress.

Breeding

Breeding Datnioides quadrifasciatus in home aquaria is exceptionally uncommon, with very few documented successes. The species likely requires large groups of mature adults, seasonal environmental cues, and extensive space to trigger spawning. Information on captive reproduction remains scarce, and most specimens available in the trade are wild-caught or farm-raised using hormone treatment. Attempting to breed this species at home is impractical for the vast majority of aquarists.

Why Buy from Tropical Fish Co

Tropical Fish Co supplies healthy, well-acclimated Datnioides quadrifasciatus specimens that are feeding confidently on prepared foods. Our expert team provides detailed care guidance covering housing, water quality, feeding strategies, and tankmate compatibility, ensuring you are fully prepared for this specialist predator. We carefully select active, alert individuals with strong bar patterns and no signs of stress or disease. With fast, reliable UK delivery using specialist livestock couriers, your tiger datnoid arrives safely in insulated packaging with oxygen. We are committed to supporting knowledgeable fishkeeping and offer ongoing advice to help you succeed with this impressive and demanding species.