Wasp Stream Catfish (Akysis vespa) 3cm Aquarium Glaser

Akysis vespa

Common names: Wasp Stream Catfish, Orange‑Banded Hillstream Catfish, Mini Bee Catfish
Family: Akysidae

Akysis vespa is a tiny, beautifully patterned Asian hill‑stream catfish known for its yellow‑orange and brown “wasp‑like” banding and cryptic behavior. It’s a specialist species best suited to cool, oxygen‑rich, fast‑flowing setups rather than typical tropical community tanks. 

Identification

• Size: ~3–4 cm (1.2–1.6 in) standard length (one of the smallest Akysis species) Pattern: Bold yellow/orange bands on a brown body (wasp‑like camouflage) 
• Body: Tuberculate (rough‑textured) skin; no swim bladder (typical of Akysis) 
• Spines: Pectoral spines can inflict a painful sting if handled improperly 

Look‑alikes: A. longifilis (longer nasal barbels) and A. prashadi (brown rather than yellow abdomen). 

Natural Range & Habitat

• Endemic to: Southern Myanmar (Burma)
• Drainage: Ataran (Salween/Thanlwin system)
• Habitat: Clear, fast‑flowing streams with gravelly substrates and high oxygen levels 

They spend daylight hours concealed under stones or within the substrate, emerging more at dusk/night. 

Water Parameters (Aquarium)

• Temperature: Ideal 20–24 °C (68–76 °F); tolerated a bit warmer short‑term 
• pH: ~6.0–7.5 (slightly acidic to neutral) 
• Hardness: Soft to moderately hard
• Flow & oxygen: Moderate to strong current; high dissolved oxygen is essential 

Tank Setup

• Minimum tank: ~40–60 cm footprint (10–20 gal); longer is better for current runs 
• Substrate: Fine sand with rounded gravel/river stones (allows burrowing) 
• Décor: Smooth rocks, slate, driftwood to break flow; few plants that tolerate current
• Lighting: Subdued; provide shaded refuges
• Water quality: Immaculate—this species is sensitive to waste buildup 

Diet

• Primary foods: Small live or frozen items—bloodworms, daphnia, brine shrimp, whiteworms 
• Dry foods: Some accept finely sized sinking pellets/crumbs once settled
• Feeding tips: Target feed at dusk; shy feeders can be outcompeted in community tanks

Temperament & Compatibility

• Temperament: Peaceful but very shy
• Best with: Asian hill‑stream species (small danios, peaceful loaches) that enjoy cooler, fast‑flowing water
• Avoid: Warm‑water fish, boisterous feeders, or species needing still water
• Social: Can be kept singly or in small groups if ample hiding places are provided

Breeding

• Status: Has been bred in aquaria
• Trigger: Large water changes causing abrupt condition shifts (cooler, fresher water) 
• Eggs: Laid on hard substrates; greenish eggs reported
• Difficulty: Moderate; specialized conditions required

Why Keep Akysis vespa

• Striking, “micro‑predator” aesthetics in a nano hill‑stream setup
• Excellent candidate for Asian river biotope aquaria
• Fascinating behavior and camouflage

Caution: Handle carefully—pectoral spines can sting.