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Bumblebee Catfish: Species, Care, and Tank Setup Essentials
ByIMRAN
Three unrelated catfish families each carry bold yellow-and-black vertical bands that earned them a shared nickname inspired by bees. The most frequently sold species is the South American Microglanis iheringi, a peaceful bottom-dweller that reaches 3 to 4 inches at maturity. Because retailers apply the name loosely, purchasing the wrong fish is a routine mistake new owners make.
This article explains how to tell the three “bumblebee” catfish apart, then walks through setting up a stable tank, dialing in water parameters, and choosing compatible tankmates for hobbyists who keep South American community aquariums.
Why the Bumblebee Catfish Name Covers More Than One Species
The yellow-and-black bands that make these catfish recognizable show up in at least three unrelated species spread across two continents, and that overlap is the source of most mismatched care advice online. Fish stores, wholesalers, and marketplace sellers often blur the line between them, which leaves hobbyists with the wrong tank size or the wrong tankmates. Sorting out which species you are actually buying is the first step toward keeping it alive long-term.
Three Distinct Fish Sharing One Look
The South American Microglanis iheringi is the small, peaceful species most often sold as a bumblebee catfish in local shops, and it stays under 4 inches. The larger Pseudopimelodus bufonius, sometimes called the toad catfish, is a fast-growing Amazonian predator that exceeds 6 inches and is regularly mislabeled in shipments from the Amazon and Orinoco basins. The Asian it (Pseudomystus siamensis) from Thailand and the Mekong basin belongs to a separate genus, with sharper fin edges and a noticeably more aggressive temperament.
| Common Name | Scientific Name | Native Region | Adult Size | Temperament |
|---|---|---|---|---|
| South American Bumblebee Catfish | Microglanis iheringi | Amazon and Orinoco basins | 3 to 4 inches | Peaceful, shy |
| Toad Catfish (mislabeled as bumblebee) | Pseudopimelodus bufonius | Amazon and Orinoco basins | 6+ inches | Predatory |
| Asian Bumblebee Catfish | Pseudomystus siamensis | Thailand, Mekong basin | 5 to 6 inches | Semi-aggressive |
| Bumblebee Cichlid (not a catfish) | Steatocranus spp. | Congo River basin | 4 to 5 inches | Territorial, diurnal |
South American bumblebee cichlids (Steatocranus species) are not catfish at all, yet they get lumped in because of identical coloration. Identifying the correct species before purchase saves both money and fish lives.
Identifying the True Microglanis Bumblebee Catfish
Once you know which species to look for, the visual cues become straightforward. A true Microglanis iheringi has a stocky, rounded head, a broad mouth, and three pairs of barbels, including one prominent maxillary pair it sweeps across the substrate while feeding. Those barbels are the single most reliable field mark separating it from similar-looking juveniles of larger predators.
Size, Banding, and Body Shape
Adult size runs 3 to 4 inches, well under the 6-inch Pseudopimelodus look-alike, and that gap is the easiest test when you can compare fish side by side. Wide, even yellow-and-black vertical bands stay distinct into adulthood rather than fading or breaking into spots, and a flattened belly suited to bottom-dwelling life is paired with a slightly forked caudal fin. Behavior offers a final clue: a true Microglanis spends daylight hours hidden and only emerges at dusk, unlike active diurnal cichlids wearing the same color pattern.
A dusk-active bottom dweller also needs a tank that gives it room to vanish during the day, which shapes the footprint discussion that follows.
When a fish labeled “bumblebee catfish” at the shop is out swimming in bright light and chasing tankmates, it is almost certainly not a Microglanis.
Tank Size, Footprint, and Hiding Spots That Match Its Nature
A proper setup starts with the right footprint, because this is a fish that hugs the substrate and rarely uses the water column. A 20-gallon long tank is the practical minimum for one adult, and a 30-gallon is the better choice for a small group of three to five. Floor space matters more than gallon count, since a tall, narrow tank leaves no room for the caves and driftwood the fish depends on.
Decor and Substrate Choices
Provide at least two or three caves, PVC sections, or driftwood arches per fish so dominant individuals cannot lock subordinates out of shelter. Fine sand or smooth rounded gravel protects the sensitive barbels the fish uses to locate food, and coarse or sharp substrate wears those barbels down to nubs within months. Dim lighting supported by floating plants like Amazon frogbit or water sprite replicates the shaded stream conditions the species evolved in.
- Minimum tank: 20 gallons long for a single adult
- Group size: 3 to 5 individuals in 30+ gallons reduces shyness
- Hiding spots: 2 to 3 caves or driftwood arches per fish
- Substrate: fine sand or smooth pea gravel under 3 mm
- Lighting: dim, with floating plants to diffuse the surface
Water Parameters, Temperature, and Long-Term Stability
Stable water matters more than chasing exact numbers, because parameter swings stress nocturnal catfish faster than active swimmers. The comfortable bumblebee catfish temperature range sits between 72 and 79°F, with 74 to 76°F being a stable middle ground for most home setups. A reliable heater and an accessible test kit are non-negotiable, since this fish shows stress by hiding rather than by gasping at the surface.
pH, Hardness, and Filtration
Slightly acidic to neutral pH between 6.5 and 7.5 suits the species, and softer water under 12 dGH gets closer to its native blackwater conditions. Weekly water changes of 20 to 30 percent keep nitrates below 20 ppm, and a sponge filter or canister with a baffled outflow avoids the strong current that pushes this fish off its preferred resting spots. Aging water with Indian almond leaves or driftwood can gently nudge hardness and pH into the preferred range while staining the water the tea color the species comes from.
The chart below maps the realistic adult size of each commonly sold species against a workable tank footprint, which is more useful than raw gallons for a bottom-hugging fish.
| Species | Adult Length | Minimum Tank | Recommended Footprint |
|---|---|---|---|
| Microglanis iheringi | 3 to 4 inches | 20 gallons | 30″ x 12″ or larger |
| Pseudopimelodus bufonius | 6+ inches | 55 gallons | 48″ x 18″ or larger |
| Pseudomystus siamensis | 5 to 6 inches | 40 gallons | 36″ x 14″ or larger |
Diet, Feeding Schedule, and a Realistic Tankmate Matrix
A protein-heavy diet keeps this nocturnal hunter in good shape, and food choice matters more than brand loyalty. Sinking pellets, frozen bloodworms, frozen brine shrimp, and the occasional small earthworm or chopped prawn cover the full range of what the species eats in the wild. Feed once daily at lights-out, or split into two small portions, because the fish will not compete for food during the day and may starve silently in a busy community tank.
Safe, Risky, and Never Tankmates
Safe tankmates include medium tetras, rasboras, corydoras, adult dwarf gouramis, and peaceful dwarf cichlids that occupy the mid and upper water column. Risky pairings include neon tetras, ember tetras, and other fish under one inch, along with slow-moving long-finned bettas that the catfish can ambush at night. Never combine it with dwarf shrimp or fish fry, which the catfish will hunt without hesitation once the lights go down.
| Category | Examples | Reasoning |
|---|---|---|
| Safe | Black skirt tetra, harlequin rasbora, corydoras, pearl gourami | Too large to swallow, occupy different water levels |
| Risky | Neon tetra, ember tetra, long-finned betta, adult guppy | Small enough to be eaten or slow enough to be nipped |
| Never | Cherry shrimp, amano shrimp, fish fry of any species | Treated as live food at night |
Temperament stays generally peaceful, but hunger and cramped quarters can trigger opportunistic predation on sleeping fish, so feed well and stock lightly. The it size it reaches as an adult is small enough that anything under an inch becomes a plausible meal.
Stable water keeps the immune system resilient, but long-term health also depends on what goes in the tank and how often you feed.
Health, Lifespan, and a Night-Viewing Care Checklist
Captive lifespan runs 5 to 8 years when water quality, diet, and hiding spots stay consistent, and the fish often outlives the community of mid-level swimmers it was added to. Because the species hides by day, owners often cannot tell whether it is thriving or quietly declining. A short night-viewing routine solves that problem and catches trouble early.
Spotting Trouble Before It Becomes Fatal
Use a red or blue moonlight briefly after lights-out to confirm the fish is active, swimming normally, and not gasping at the surface. Watch for barbels worn down to nubs, a warning that substrate is too sharp or that ammonia has been elevated long enough to burn the mucous membrane. Refusal to emerge for several consecutive nights often signals stress, bullying, or illness rather than normal nocturnal behavior, and warrants a water test and a careful count of the other fish in the tank.
Quarantine and Medication Notes
Quarantine new arrivals for two weeks in a separate tank to keep ich, flukes, and bacterial infections from entering the main display. Avoid copper-based medications, which catfish tolerate poorly and can damage the liver even at half the labeled dose. Salt dips at one tablespoon per five gallons work for short external treatments, and formalin-based products are generally safe when dosed by total water volume rather than tank length.
- Quarantine duration: 14 days minimum for any new arrival
- Avoid: copper sulfate, malachite green at full dose
- Safer options: salt, formalin, methylene blue, nitrofurazone
- Observation window: 15 to 30 minutes after lights-out, twice weekly
Putting It Together
The single most important step with a it is confirming the species before purchase, because the small peaceful Microglanis and the larger predatory Pseudopimelodus look nearly identical as juveniles but need very different tanks and tankmates. Once the species is right, a 20-gallon long with sand, caves, and soft acidic water gives it everything it needs to settle in and start showing up at feeding time. Feed well, stock carefully, and this quiet little catfish becomes a long-lived centerpiece of a calm community tank.
FAQ
How big do bumblebee catfish get?
it size depends on the species, with Microglanis iheringi topping out at 3 to 4 inches while the often-mislabeled Pseudopimelodus bufonius can exceed 6 inches. Always confirm which species the shop is selling before judging tank suitability.
Are bumblebee catfish aggressive?
True Microglanis it are peaceful and shy, preferring to hide by day and forage at dusk. Aggression usually only appears in the larger Pseudopimelodus and the Asian Pseudomystus, both of which are sometimes sold under the same common name.
What do bumblebee catfish eat?
A it diet should center on protein-rich sinking pellets, frozen bloodworms, frozen brine shrimp, and occasional earthworm or chopped prawn. Feed once daily after lights-out, since the fish will not compete for food during daylight hours.
How many bumblebee catfish should be kept together?
Keeping 3 to 5 individuals together in a 30-gallon or larger tank reduces shyness and lets the group establish a natural hierarchy. A solo fish usually hides more, eats less, and shows itself far less often than a small group.
What water parameters do bumblebee catfish need?
Target a it temperature of 72 to 79°F, a pH between 6.5 and 7.5, and soft water under 12 dGH, with weekly 20 to 30 percent water changes. Stability matters more than any single number, since sudden swings trigger hiding and stress faster than a slightly off reading.
Do bumblebee catfish eat other fish?
They will eat any tankmate small enough to fit in their mouth, including neon tetras, ember tetras, and dwarf shrimp, especially after dark. Mid-sized tetras, rasboras, corydoras, and gouramis are too large to swallow and coexist without issue.
