Cichlidaefreshwater fishintermediate

Longfin Oscar

Astronotus ocellatus

Also known as: Longfin Oscar, Long-finned Oscar

Origin: South America

L

Water Parameters

Temperature2328 °C
15 °C35 °C
pH67.5
49
GH (Hardness)318 °dGH
0 °dGH30 °dGH
KH (Alkalinity)110 °dKH
0 °dKH20 °dKH

Quick Stats

Max Size
35 cm
Min Tank
400 L
Lifespan
10-15
Swimming Level
middle
Schooling
No
Diet
carnivore
Temperament
semi-aggressive, territorial

About

The Longfin Oscar is a selectively bred variant of Astronotus ocellatus prized for its dramatically extended dorsal, anal, and caudal fins. It retains all the personality and hardiness of the standard Oscar while adding a graceful aesthetic. Highly interactive and will learn to recognise its owner.

Care Guide

Water: 23-28°C, pH 6.0-7.5, moderately hard acceptable. Tank: Minimum 400L, strong filtration essential; Oscars are heavy waste producers. Feeding: Carnivore; large pellets, prawns, earthworms, occasional live feeder fish. Behaviour: Semi-aggressive; can be kept as pairs but may fight without space. Compatibility: Best with other robust large cichlids of similar size; avoid small fish.

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