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💧 Freshwater Near Threatened 🐠 Aquarium 🌡️ Tropical

Eyespotted Borneo sucker

Gastromyzon ocellatus Tan & Ng, 2004
Max Length
4.5 cm
Max Weight
-
Lifespan
-
Trophic Level
2.4
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Eyespotted Borneo sucker (Gastromyzon ocellatus), first described by Tan & Ng, 2004 is a tiny fish in the family Balitoridae (order Cypriniformes). Adults typically reach 4.50 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It feeds primarily on plankton, plant material, and detritus. On the IUCN Red List, it is classified as Near Threatened.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Balitoridae kept in the hobby.

Scientific Name
Gastromyzon ocellatus
Authority
Tan & Ng, 2004
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
NT
Max Length
4.5 cm
Trophic Level
2.4
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 8 - 9; Anal soft rays: 5; Vertebrae: 30 - 31. Distinguished from its congeners in having the following unique combination of characters: body dark brown, dorsum with 7-8 cream bars, side with bars complete or interrupted to form an ocellus pattern, head dorsum dark brown with cream spots and blotches; caudal fin red when live; lack of secondary rostrum; lack of a postoral pouch; gill slit angular, subopercular groove present and continuous to pectoral fin origin; a rounded snout when viewed dorsally; presence of sublacrimal groove; abdomen without scales; 56-61 scales on lateral line; pelvic fin not overlapping anal fin origin, adpressed dorsal fin not overlapping anal fin origin .: elongated.

🌀 Behaviour

Behavioural data for Eyespotted Borneo sucker is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
2.4±0.1

📐 Morphometrics

Length–Weight Relationship: W = 0.00646 × L3.11 (TL)
Max TL
4.5cm
Dorsal Rays
9
Anal Rays
5
Vertebrae
31

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2018

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
2.4
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Tropical
Described By
Tan & Ng, 2004

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