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Compatibility

Compatibility brief

Can Discus live with Serpae Tetra?

Discus

Discus

Symphysodon sp.

peaceful~20cm
Serpae Tetra

Serpae Tetra

Hyphessobrycon eques

semi-aggressive~4cm
VerdictCAUTION

Caution. Check the issues below before buying.

Discus + Serpae Tetra: Temperament difference. Serpae Tetra is semi-aggressive, while Discus is peaceful. Expect chasing or stress unless the tank is large and heavily structured — monitor closely. Outcomes still depend on your tank shape, maintenance routine, and individual fish.

Compatibility score

70/100

Profile confidence: medium

Order of checkstank volume vs adults → predation mouth gap → temperament / fin nipping → shared water windows.

Min tank

200L

Combined minimum footprint reference for these two species: about 200L (larger active fish often want more length).

Temperature
Range in °C28–28°C shared
DiscusSerpae TetraShared window
pH
Range6–7 shared
DiscusSerpae TetraShared window
Temperament / behaviour

Temperament gap (peaceful vs semi-aggressive) — needs space, structure, and careful observation, not a “drop and forget” mix.

Assessment details

  1. Temperament difference

    Top issue

    Serpae Tetra is semi-aggressive, while Discus is peaceful. Expect chasing or stress unless the tank is large and heavily structured — monitor closely.

  2. Narrow temperature overlap

    Discus and Serpae Tetra have only a narrow shared temperature range. Maintaining stable water temperature will be important.

“Serpae Tetra is semi-aggressive, while Discus is peaceful”

Temperament difference

Next steps

Concrete changes, not "research more" filler.

  • •Provide plenty of hiding spots and visual breaks so Discus can escape if harassed.
  • •Discus should be kept in a group of at least 4 for best health and behaviour.
  • •Serpae Tetra should be kept in a group of at least 8 for best health and behaviour.
Sources from both profiles
Only URLs that exist on the species records are shown. We do not fabricate citations.

Try this next

Build the full stocking list with Discus + Serpae Tetra

Compare another pairOpen tank builder

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.

Full tank-mate guides

Related pair checks

Discus + Serpae Tetra — common questions

Can Discus live with Serpae Tetra?
Yes, if you plan for it. The verdict is CAUTION, which means the pairing works when specific conditions are met, not by default. The first condition: Provide plenty of hiding spots and visual breaks so Discus can escape if harassed.
What tank size do you need for Discus and Serpae Tetra together?
Plan around 200 litres as the working minimum. That figure comes from each species' published minimum and their group needs, and it assumes adult sizes, not shop sizes.
What's the main risk?
Temperament difference. That is the first thing to plan around. The matching entry under assessment details on this page explains the reasoning and the numbers behind it.
What should you check before buying?
Discus should be kept in a group of at least 4 for best health and behaviour. Serpae Tetra should be kept in a group of at least 8 for best health and behaviour.