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Compatibility

Compatibility brief

Can Angelfish live with Neon Tetra?

Angelfish

Angelfish

Pterophyllum scalare

semi-aggressive~20cm
Neon Tetra

Neon Tetra

Paracheirodon innesi

peaceful~4cm
VerdictRISKY

Risky. This mix is commonly discouraged for typical setups.

Angelfish + Neon Tetra: Known incompatible pairing. Adult angelfish may eat neon tetras — neons fit easily in an adult angel's mouth. Growing up together does not remove the predation risk. Treat this as a do-not-stock default, not a caution experiment.

Compatibility score

30/100

Profile confidence: medium

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

Min tank

150L

Combined minimum footprint reference for these two species: about 150L (larger active fish often want more length).

Temperature
Range in °C24–26°C shared
AngelfishNeon TetraShared window
pH
Range6.5–7 shared
AngelfishNeon TetraShared window
Size / predation

Angelfish (20cm adult) may treat small Neon Tetra (~4cm) as food once grown — plan adult sizes, not shop sizes.

Temperament / behaviour

Adult angelfish commonly treat neon-sized fish as prey once the mouth gap is large enough. Keepers who raise them together as juveniles often feel safe for months, then lose neons as the angels mature. That history does not remove the adult predation risk in a typical home tank. If you want midwater colour with angels, choose fish that stay outside the adult mouth size rather than hoping the school stays lucky.

Assessment details

  1. Known incompatible pairing

    Top issue

    Adult angelfish may eat neon tetras — neons fit easily in an adult angel's mouth. Growing up together does not remove the predation risk. Treat this as a do-not-stock default, not a caution experiment.

  2. Temperament difference

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

  3. Narrow temperature overlap

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

“Adult angelfish may eat neon tetras — neons fit easily in an…”

Known incompatible pairing

Next steps

Concrete changes, not "research more" filler.

  • •Do not stock adult angelfish with neon tetras. Keep neons with peaceful soft-water midwater fish of similar size, or keep angels with larger dither fish that will not fit in an adult mouth.
  • •Provide plenty of hiding spots and visual breaks so Neon Tetra can escape if harassed.
  • •Neon Tetra should be kept in a group of at least 6 for best health and behaviour.

Try instead

  • →Build a species-only tank for the larger fish, or restock with fish too large to be eaten at adult sizes.
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 Angelfish + Neon 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

Angelfish + Neon Tetra — common questions

Can Angelfish live with Neon Tetra?
For most keepers, no. Fishori’s verdict is RISKY because adult angelfish commonly eat neon tetras once fully grown. Juvenile co-raising does not make the adult pairing safe. Choose a different midwater companion for angels, or skip angels if the neon school is the priority.
What tank size do you need for Angelfish and Neon Tetra together?
Plan around 150 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?
Known incompatible pairing. That is the check that fails outright for this pair. The matching entry under assessment details on this page explains the reasoning and the numbers behind it.
What should you check before buying?
Provide plenty of hiding spots and visual breaks so Neon Tetra can escape if harassed. Neon Tetra should be kept in a group of at least 6 for best health and behaviour.