
Asian bumblebee catfish
Pseudomystus siamensis
Parameter dashboard
22-26 °C
6-7.5
18 cm
Care guide
The Asian bumblebee catfish is a small, stocky catfish from the lower Mekong and Chao Phraya basins of Southeast Asia, named for the bands of black and pale yellow that wrap around its body. It stays manageable at roughly 15 to 18 cm and is a hardy, genuinely long-lived fish, but it is far more of a predator than its cute markings suggest. It spends the daylight hours hidden in caves, wood or dense planting and comes out to hunt after dark.
This hunting instinct shapes everything about stocking it. A bumblebee catfish will eat any tankmate small enough to fit in its mouth, so small fish, fry and shrimp are simply prey. It is best kept with robust, mid-water or surface species too large to swallow, like bigger barbs, characins and peaceful cichlids. It is also territorial toward other bottom-dwellers, especially its own kind, so a single specimen with plenty of caves and broken sight lines is the easiest way to keep the peace.
In terms of water it is undemanding, doing well in soft, slightly acidic conditions around 22 to 26°C with a pH up to about 7.5. The main thing it needs is structure: dim lighting and several secure hiding places so it feels safe enough to be active. Feed meaty sinking foods such as frozen prawn, mussel, earthworm or sinking pellets in the evening when it is naturally looking for food, and it will settle in as a long-term resident.
Sources
- seriouslyfish.com — https://www.seriouslyfish.com/species/pseudomystus-siamensis/
- fishkeeper.co.uk — https://www.fishkeeper.co.uk/fish/freshwater/catfish/asian-bumblebee-catfish
Further reading on identification and aquarium care.
Tankmate compatibility (sample)
Pairwise screening against other species in the database (prioritizing the same family when data is available).
Review first (10)
Caution or avoid from automated rules — confirm before mixing.
| Species | Assessment | Notes |
|---|---|---|
| Blue Belly Goby Stiphodon percnopterygionus Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
| Congo tetra Phenacogrammus interruptus Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
| Dwarf rainbowfish Melanotaenia praecox Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
| Fasciatus Shell Dweller Altolamprologus fasciatus Caution | Caution | Species with non-overlapping pH ranges may not thrive together Open pair in Compare → |
| Jewel tetra Hyphessobrycon eques Caution | Caution | Fish 2x+ larger may eat smaller tankmates Open pair in Compare → |
| Malawi eyebiter Dimidiochromis compressiceps Caution | Caution | Species with non-overlapping pH ranges may not thrive together Open pair in Compare → |
| Molly Poecilia sphenops Caution | Caution | Fish 2x+ larger may eat smaller tankmates · Species with non-overlapping pH ranges may not thrive together Open pair in Compare → |
| Small snakehead Channa asiatica Caution | Caution | one is boisterous and the other a much smaller peaceful fish sharing the same floor, where it can be intimidated and outcompeted at feeding time Open pair in Compare → |
| Vampire Pleco Leporacanthicus galaxias Caution | Caution | one is boisterous and the other a much smaller peaceful fish sharing the same floor, where it can be intimidated and outcompeted at feeding time Open pair in Compare → |
| White cloud mountain minnow Tanichthys albonubes Avoid | Avoid | Fish 2x+ larger may eat smaller tankmates · Species with non-overlapping temperature ranges cannot coexist · the two share only a narrow band of temperature, so one of them sits at the edge of its range Open pair in Compare → |
2 species with compatible assessment in this sampleCollapse to hide the list; use “Open pair in Compare” for the full matrix.
| Species | Assessment | Notes |
|---|---|---|
| Jewelfish Hemichromis bimaculatus Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
| Striped panchax Aplocheilus lineatus Compatible | Compatible | No rule-based conflicts detected for this pair. Open pair in Compare → |
Same rule engine as Compare. Not a substitute for observation, tank size, or acclimation.
Was this page useful? Spot anything wrong?