A massive, deep-bodied ambush predator highly prized by monster fish keepers for its striking black and gold 'tiger' stripes. Native to the freshwater rivers of Southeast Asia, they possess huge mouths and will consume any fish small enough to fit. They are notoriously shy when young but grow into bold, impressive centerpieces. Due to intense conspecific aggression, they should be kept entirely solitary or in groups of 4 or more to disperse bullying.
At a Glance
Tank Requirements
Water Parameters
Temperament & Compatibility
Available Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Standard Adult
The full-grown adult form. Requires a massive aquarium with heavy filtration to handle their extreme bioload. Will readily consume smaller tank mates like Tetras, Cichlids, and even smaller Plecos.
Same care requirements as the base species
Also known as: Adult Datnoid, Monster Fish
Juvenile (Grow-out)
Juveniles are commonly sold at 2-3 inches. While they can temporarily live in smaller aquariums, they are very sensitive to water quality and easily stressed, often turning completely dark (unstable colors) when insecure. Upgrades are mandatory.
Differs in 6 traits from base species
Also known as: Baby Datnoid, 2 inch Datnoid
Indonesian Datnoid (Tiger Fish) Care Guide Summary
The Indonesian Datnoid (Tiger Fish), scientifically known as Datnioides microlepis, belongs to the Oddballs family group. Adults reach a maximum size of approximately 40 cm and have a compressed body shape with a slow growth rate. Classified as semi-aggressive, this species primarily occupies the mid-level and bottom zones of the aquarium and produces a extreme level of biological waste.
To thrive, the Indonesian Datnoid (Tiger Fish) requires a freshwater only aquarium with a minimum volume of 680 litres and a tank length of at least 180 cm. Water temperature should be maintained between 24°C and 28°C, with a pH range of 6.5–7.5 and a general hardness of 5–15 dGH. A moderate water flow is preferred.
The Indonesian Datnoid (Tiger Fish) is a rewarding species to keep, provided its core environmental needs are met. This species is available in 2 varieties: Standard Adult and Juvenile (Grow-out). Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.
Indonesian Datnoid (Tiger Fish) Habitat Setup
When setting up an aquarium for the Indonesian Datnoid (Tiger Fish), a moderate water flow best suits their natural preferences. Because this species occupies the mid-level and bottom zones, the aquarium layout should prioritise open swimming space in the centre of the tank for free movement and sufficient floor space with hiding spots among rocks, wood, or dense planting. Useful additions include driftwood, which can serve as both a hiding place and a dietary supplement and dense planting to provide cover, break sightlines, and reduce stress.
Indonesian Datnoid (Tiger Fish) Compatibility Notes
Classified as semi-aggressive, the Indonesian Datnoid (Tiger Fish) is adaptable and can be kept singly or in a small group, offering flexibility when planning a community tank. When choosing tankmates, any fish small enough to fit in its mouth will likely be eaten, ornamental shrimp are not safe companions, conspecific aggression can be intense, especially in smaller tanks, and boisterous or fast-moving tankmates may cause this species undue stress. Selecting tankmates that favour different water layers from the mid-level and bottom zones can help reduce competition and territorial overlap.
Indonesian Datnoid (Tiger Fish) Feeding & Diet Considerations
The Indonesian Datnoid (Tiger Fish) is a predatory species that will readily consume small fish, so nano or bite-sized tankmates should be avoided, will hunt and eat ornamental shrimp, making it unsuitable for shrimp-focused setups, and will eat fry, so breeding efforts in the same tank are unlikely to succeed.
Frequently Asked Questions About Indonesian Datnoid (Tiger Fish)
How big does Indonesian Datnoid (Tiger Fish) get?+
What tank size does Indonesian Datnoid (Tiger Fish) need?+
What water parameters does Indonesian Datnoid (Tiger Fish) need?+
Is Indonesian Datnoid (Tiger Fish) peaceful or aggressive?+
Can Indonesian Datnoid (Tiger Fish) live alone?+
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