The Tropical Tank Homepage
Article Library Fish Index Tank Setups Forum Links
Fish Index:
Misc FW
A-Z list by
Common name
A-Z list by
Scientific name

What's New:

What's New in the Fish Index

Three new Puffer profiles.

All Updates

Site Map
About this site
Find The Tropical Tank on Facebook Follow The Tropical Tank on Twitter

Enjoyed this site?

Vote for it and
visit other ranked
aquarium sites...



Picture of Discus

Photo taken at Wharf Aquatics
Photos © Sean Evans

Common names:Discus, Brown Discus, Blue Discus, Heckel Discus, Green Discus
Scientific name:Symphysodon sp. (see below)
Size:Up to 6" (15cm)
Origin:South America (Amazon)
Tank setup:A large and fairly deep tank, with subdued lighting and gentle circulation.
Compatibility:Generally peaceful, keep in a species tank or with other peaceful fishes with similar requirements.
Temperature:26-30oC (79-86oF)
Water chemistry:Soft and acidic, pH 6.0-6.5 is preferable, and required for breeding. However, contrary to many "Discus Myths", they can thrive in harder or more alkaline water.
Feeding:Omnivorous: live and frozen foods, flake and granular foods.
Sexing:The only definitive means of sexing is the genital papilla, which is pointed in males and rounded in females.
Breeding:Eggs are laid on a pre-cleaned spawning site and both they and the fry are protected by the parents. The fry initially feed on a body mucus secreted by the parents.
Comments: The discus is sometimes known as the "King of the Aquarium" by enthusiasts. While discus seem to have many "myths" about their requirements, it is true to say that efficient filtration and attention to water quality are essential to maintain discus in good condition. They are best kept in a group of around 6-8 individuals, within which a heirarchy will develop. They should not be included in general mixed community tanks - rather selected companions can be chosen to compliment the discus. Popular choices include Corydoras catfish, dwarf cichlids and peaceful medium-sized tetras.

The Discus are now considered to be three separate species. These are:
Symphysodon aequifasciatus, the Green Discus.
Symphysodon discus, the Heckel Discus
Symphysodon haraldi, the Blue or Brown Discus.

The wild-type Discus have been cultivated into numerous colour varieties by breeders.
[an error occurred while processing this directive]




[Home] [Article Library] [Fish Index] [Tank Setups] [Forum] [Site Map]


The Tropical Tank Copyright © 2000-2022 Sean Evans This website was last updated on 1st June 2022