CheckMyFishTankDiscus care
Symphysodon aequifasciatus · Freshwater · Advanced level care
The king of the aquarium, needing warm, very clean water.
Feeding
Twice a day. A few pellets or a couple of frozen items per fish that are gone in a few minutes. Discus pellets, frozen bloodworms, beef heart mix.
Good tank mates
Fish that pass every check with Discus in a 150 gallon tank: same water, overlapping temperature, nobody gets eaten and no bullies.
Do not mix with
- Neon Tetra: Neon Tetra and Discus need different water temperatures.
- Black Neon Tetra: Black Neon Tetra and Discus need different water temperatures.
- Black Skirt Tetra: Black Skirt Tetra and Discus need different water temperatures.
- Serpae Tetra: Serpae Tetra and Discus need different water temperatures.
- Congo Tetra: Congo Tetra and Discus need different water temperatures.
- Buenos Aires Tetra: Buenos Aires Tetra and Discus need different water temperatures.
- Flame Tetra: Flame Tetra and Discus need different water temperatures.
- Black Phantom Tetra: Black Phantom Tetra and Discus need different water temperatures.
Questions
What size tank does a Discus need?
At least 75 gallons for a group of 5. Adults grow to about 6 inches, so plan for the adult size, not the size at the store.
What temperature does a Discus like?
82 to 86 degrees Fahrenheit, with a pH of about 5.5 to 7. A steady temperature matters more than hitting one exact number.
How many Discus should I keep together?
Keep 5 or more. They feel safe in a group and show better color and behavior.
What do Discus eat?
Discus pellets, frozen bloodworms, beef heart mix. Feed twice a day: a few pellets or a couple of frozen items per fish that are gone in a few minutes.
Sources
Checked against these sources on 2026-11-10. When sources disagree we use the safer number.