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

💧 Freshwater Near Threatened 🐠 Aquarium 🌡️ Tropical

Prado toothcarp

Phalloceros ocellatus Lucinda, 2008
Max Length
1.9 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
15.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Prado toothcarp (Phalloceros ocellatus), first described by Lucinda, 2008 is a tiny fish in the family Poeciliidae (order Cyprinodontiformes). Adults typically reach 1.90 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, 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 Poeciliidae kept in the hobby.

Scientific Name
Phalloceros ocellatus
Authority
Lucinda, 2008
Habitat
Freshwater
Climate
Tropical
IUCN Status
NT
Max Length
1.9 cm
Trophic Level
3
Resilience
High
Vulnerability
15.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 7 - 8; Anal soft rays: 9 - 10; Vertebrae: 31 - 32. Distinguished from all other species of the genus Phalloceros, except Phalloceros leticiae and Phalloceros mikrommatos by the roundish to rounded and well-defined ocellated lateral spot. Differs from Phalloceros leticiae by the postorbital length in females 24.8-39.3 % SL (vs. 39.2-42.2 % SL) and in males 29.3-38.2 % SL (vs. 36.7-42.3 % SL); and from Phalloceros mikrommatos by the number of anal-fin rays in females 10 (vs. 11) .

🌀 Behaviour

Behavioural data for Prado toothcarp is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Viviparous 🤰 Viviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
Internal

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: coastal drainages between Prado and Sooretama in Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00851 × L3.15 (TL)
Max TL
1.9cm
Dorsal Rays
8
Anal Rays
10
Vertebrae
32

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
15.00/100
Low vulnerability
Trophic Level
3
Predator
Climate Zone
Tropical
Described By
Lucinda, 2008

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Prado toothcarp ↗
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.