Black Tiger Dario (Dario sp. “Myanmar”) Tiny, beautifully patterned and full of understated character, the Black Tiger Dario is a fascinating nano predator recognised for its dark vertical barring and subtle metallic colouration. These miniature hunters are ideal for mature, densely planted aquariums where their natural stalking and territorial behaviours can be observed. Quick Facts Scientific name: Dario sp. “Myanmar” Common name: Black Tiger Dario, Tiger Dario, Black Tiger Badis Current size: Juveniles Sex: Juveniles are currently unsexable Adult size: Approximately 2–3 cm Tank size: 30L+ recommended Difficulty: 🟡 Moderate Temperament: Peaceful micro predator with territorial males Social needs: Best kept singly, as a pair or in a carefully structured group Is this for you? ✔️ Perfect if: You enjoy unusual nano fish with natural hunting behaviour. You have a mature, densely planted aquarium. You can provide small live or frozen foods. You appreciate subtle colouration and intricate patterning. ❌ Avoid if: You want an active open-water schooling fish. You can only offer flakes or large dry pellets. Your aquarium is newly established or sparsely decorated. You want to protect every shrimplet or tiny aquatic invertebrate. Why choose Black Tiger Darios? The Black Tiger Dario is a beautifully understated nano fish with dark vertical bars, warm earthy tones and subtle blue or metallic highlights. Mature males generally develop stronger colouration, while females and juveniles tend to remain more subdued. Rather than swimming constantly through open water, these tiny predators methodically explore plants, mosses and leaf litter while searching for microscopic prey. Their deliberate movements and observant nature make them especially rewarding for aquarists who enjoy watching natural behaviour. These fish are currently offered as juveniles and cannot be reliably sexed. Colour, body shape and territorial behaviour generally become more apparent as the fish mature. Benefits Beautiful black tiger-like vertical markings Extremely compact adult size Fascinating micro-predatory behaviour Ideal for mature planted nano aquariums Generally peaceful with carefully selected tank mates Excellent feature species for experienced nano fishkeepers Care made simple Temperature: 22–26°C pH: 6.5–7.5 Diet: Baby brine shrimp, daphnia, cyclops, grindal worms, microworms, mosquito larvae and appropriately sized frozen foods Water: Clean, stable and gently filtered with low to moderate flow Substrate: Fine sand, smooth gravel or planted aquasoil Setup: Dense plants, mosses, leaf litter, driftwood and numerous visual barriers Small live foods are strongly recommended, particularly while the fish are settling into their new aquarium. Observe feeding carefully, as shy individuals may be outcompeted by faster tank mates. Pairs perfectly with Chilli Rasboras Green Neon Tetras Clown Killifish Pygmy Corydoras Adult Amano Shrimp NTA Insight: Black Tiger Darios are best appreciated in a quiet, heavily planted aquarium where they can hunt among mosses, roots and leaf litter. They may ignore conventional flakes and pellets, so access to appropriately sized live or frozen foods is important. As these are juveniles, sex cannot be guaranteed and their adult colouration will continue developing as they mature. FAQ Can these juvenile Black Tiger Darios be sexed? No. These fish are currently juveniles and cannot be reliably sexed. Differences in colouration, body shape and territorial behaviour generally become clearer as they mature. What do Black Tiger Darios eat? They are micropredators that prefer small live and frozen foods such as baby brine shrimp, daphnia, cyclops, microworms and finely sized frozen foods. Some individuals may refuse dry food. Are Black Tiger Darios peaceful? They are generally peaceful toward unrelated fish, but mature males may defend small territories against one another. Dense planting and visual barriers help reduce conflict. Can they live with shrimp? They are usually compatible with healthy adult shrimp, but shrimplets and other tiny invertebrates may be hunted and eaten. Can multiple Black Tiger Darios be kept together? Yes, but the aquarium should provide dense vegetation, several separate territories and plenty of visual barriers. Keeping multiple males in a small or open aquarium may lead to ongoing territorial disputes. Do they need a heavily planted aquarium? Dense planting is strongly recommended. Plants, mosses, driftwood and leaf litter provide shelter, hunting areas and visual barriers that help these shy fish feel secure. Are Black Tiger Darios suitable for beginners? They are better suited to aquarists who are comfortable maintaining stable water conditions and providing small live or frozen foods. Their aquarium requirements are manageable, but feeding can be more specialised than for typical community fish. How long do Black Tiger Darios live? With stable water quality, suitable nutrition and a low-stress environment, they may live for approximately 3–5 years.
