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

💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Tropical

Fluviphylax Simplex

Fluviphylax simplex Costa, 1996
Max Length
1.6 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Fluviphylax Simplex (Fluviphylax simplex) is a ray-finned fish of the family Poeciliidae. It inhabits freshwater waters. This species can reach a maximum total length of 1.6 cm. With a trophic level of 3, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Fluviphylax simplex
Authority
Costa, 1996
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
1.6 cm
Trophic Level
3
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 5 - 7; Anal soft rays: 7 - 9; Vertebrae: 26 - 27. Presence of whole opened sensory canals of head of adults.: elongated.

🌀 Behaviour

Behavioural data for Fluviphylax Simplex 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: Brazil in Rio Solimoes-Amazonas, between lago Miuá (Codajás) and mouth of Rio Tapajós, and lower rios Trobetas and Tapajós.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00525 × L3.09 (TL)
Max TL
1.6cm
Dorsal Rays
6
Anal Rays
8
Vertebrae
27

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Costa, 1996

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Fluviphylax Simplex ↗
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Spotted incorrect or outdated data?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.