Bay Snook (Petenia splendida) Care Guide
Petenia splendida, the bay snook, is a large piscivorous cichlid with a highly protrusible mouth, from Atlantic-slope waters of Mexico, Guatemala and Belize.
Compiled by Aquairi from published sources · Published · Updated
Overview
Petenia splendida, the bay snook, is a large predatory cichlid. FishBase records it from the Atlantic slope from the Grijalva River to the Usumacinta River in Mexico, the Usumacinta in Guatemala, and Belize. It has an elongated body and a strongly protrusible mouth, and occurs in red and silver morphs.
Taxonomy
- Family: Cichlidae
- Genus: Petenia
- Scientific name: Petenia splendida
Habitat
It is a freshwater, demersal species inhabiting lakes and lower river valleys, preferring slower-moving waters with a soft substrate of sand and mud (FishBase).
Tank requirements
- Minimum tank volume: 800 L
- Temperature: 26-30 °C (79-86 °F)
- pH: 7.0-7.5
- GH: 8-18 °dGH
- Maximum size: about 50 cm SL
- Lifespan: 10-15 years
Diet
It is a piscivore. FishBase states it feeds on fish, and its jaws can extend more than a quarter of the body length, allowing it to take large prey or suck small fish directly into the mouth.
Compatibility
The bay snook is aggressive and requires a large dedicated tank. Tank mates must be limited to large, robust Central American cichlids or large plecos; most other fish are unsuitable.
Breeding
It is a substrate spawner with advanced breeding difficulty. Males are larger and show more pronounced red coloration, while females tend to be rounder.
Conservation status
IUCN Red List: Least Concern, assessed in 2018. The species is also important to local commercial fisheries.
Bay Snook Breeding Guide
Overview
Petenia splendida, the bay snook, is a large piscivorous cichlid of the Atlantic slope of tropical Mexico, Guatemala and Belize, inhabiting slower-moving rivers and lakes over soft sand and mud (FishBase, Wikipedia). It reaches about 50 cm and has highly extensible jaws, protrusible to more than a quarter of its body length, used to engulf or suck in prey.
Sexing
Males are larger with more pronounced red colouration, while females tend to be rounder in body shape (Wikipedia). The basic colour varies from pale pink through deep red to gold, and the species occurs in red and silver morphs.
Breeding Setup
A very large tank with a soft sand substrate and flat surfaces suits this predator, matching its preference for slow-moving water over sand and mud (FishBase). FishBase lists a temperature range of 26-30 °C, pH 7.0-7.5 and hardness from 15 dH for the species.
Spawning Behavior & Trigger
Detailed species-specific spawning data is not populated in the consulted whitelisted sources. As classified for this knowledge base, the bay snook is a biparental substrate spawner: a pair cleans a hard surface, spawns on it and guards the eggs and fry together, in line with the open-substrate pattern of large Central American cichlids.
Egg & Fry Care
Egg counts and fry-care specifics for this species are not provided in the consulted whitelisted sources and are therefore omitted. As a guarding cichlid, both parents are expected to tend the eggs and fry on the spawning surface.
Common Challenges
The large adult size and predatory nature demand a spacious, robust setup, and aggression typically increases during spawning, so a dedicated breeding tank reduces conflict with tank mates.