New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Tropical

Schistura Nicholsi

Schistura nicholsi Smith, 1933
Max Length
7.4 cm
Max Weight
-
Lifespan
-
Trophic Level
2.6
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
35.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Occurs in shallow riffles in small streams with fast flowing water over pebbled bottom. It probably feeds on insect larvae and small amounts of algae . A female 7.84 cm SL with ovulae 1.0-1.2 mm in diameter .

Scientific Name
Schistura nicholsi
Authority
Smith, 1933
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
7.4 cm
Trophic Level
2.6
Resilience
Medium
Vulnerability
35.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 12; Anal soft rays: 8. Has 8-10 dark, quite irregular, vertical bars somewhat wider than interspaces; a complete black bar at caudal-fin base; in life, a black spot at the anterior base of the dorsal fin followed by an orange to red spot; an elongated dark blotch; an incomplete lateral line reaching at most to vertical of anal-fin origin; no median incision in upper lip . Caudal fin emarginate ; caudal peduncle length 6.5-7.5 times in SL, depth 0.8-1.2 times in length . Dorsal-fin origin above or in front of pelvic-fin insertion; top of head spotted; scales absent on belly in front of tip of pectoral fin .: elongated.

🌀 Behaviour

Behavioural data for Schistura Nicholsi is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical occurs in the upland areas of eastern Cambodia (Ref.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.6±0.28
Food Items

insect larvae and small amounts of algae (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00724 × L3.03 (TL)
Max TL
7.4cm
Dorsal Rays
12
Anal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
35.00/100
Low vulnerability
Trophic Level
2.6
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Tropical
Described By
Smith, 1933

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Schistura Nicholsi ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.