Compatibility brief
Can Discus live with Ember Tetra?
Caution. Check the issues below before buying.
Compatibility score
Profile confidence: medium
Order of checkstank volume vs adults → predation mouth gap → temperament / fin nipping → shared water windows.
200L
Combined minimum footprint reference for these two species: about 200L (larger active fish often want more length).
Assessment details
Compatible temperaments
Both Discus and Ember Tetra share a peaceful temperament.
Narrow temperature overlap
Top issueDiscus and Ember Tetra have only a narrow shared temperature range. Maintaining stable water temperature will be important.
“Discus and Ember Tetra have only a narrow shared temperature…”
Narrow temperature overlap
Next steps
Concrete changes, not "research more" filler.
- •Discus should be kept in a group of at least 4 for best health and behaviour.
- •Ember Tetra should be kept in a group of at least 8 for best health and behaviour.
- Seriously Fish. Symphysodon aequifasciatus (discus complex representative)
Primary stand-in: Seriously Fish page for a common discus taxon. Trade 'discus' is often a mix of lineages, strains, and hybrids. Match your bag label, not a single name field here.
- FishBase. Symphysodon aequifasciatus
Taxonomy, distribution, and typical max length in natural/wild contexts (cross-check to aquarium import lines).
- Wikipedia. Discus (fish)
Encyclopaedia overview; use specialist aquarium sources for your stock's real temperature/pH/footprint needs.
- Seriously Fish. Hyphessobrycon amandae
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Hyphessobrycon amandae
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Hyphessobrycon amandae
Secondary: general species context; verify all husbandry numbers against a dedicated aquarium care sheet and your test kit, not a single table row.
Try this next
Build the full stocking list with Discus + Ember Tetra
Plan further
Check each species’ mates list, size the glass, then verify the full stock in the builder. Methodology explains how verdicts are produced.
Individual fish vary in personality. Fishori uses conservative hobby rules. Observe any new introduction closely, feed thoughtfully, and keep a quarantine or backup plan. This is not veterinary advice.
Profile data confidence: high. Checked against several solid care sources that mostly agree.

