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Compatibility

Compatibility brief

Can Bristlenose Pleco live with Neon Tetra?

Bristlenose Pleco

Bristlenose Pleco

Ancistrus sp.

peaceful~15cm
Neon Tetra

Neon Tetra

Paracheirodon innesi

peaceful~4cm
VerdictCAUTION

Caution. Check the issues below before buying.

Bristlenose Pleco and Neon Tetra: Identification or trade-name ambiguity for at least one side, so this is a cautious read, not a green light. Plan for adult sizes, a stable shared water window, and individual behaviour; verify against a second reference you trust.

Compatibility score

65/100

Profile confidence: low

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

Min tank

80L

Combined minimum footprint reference for these two species: about 80L (larger active fish often want more length).

Temperature
Range in °C20–26°C shared
Bristlenose PlecoNeon TetraShared window
pH
Range6.5–7 shared
Bristlenose PlecoNeon TetraShared window
Temperament / behaviour

On temperament alone this is a standard South American community pairing: a peaceful bottom grazer and a small midwater tetra that share overlapping soft-water bands. Fishori’s CAUTION flag here is mostly honest data limits — bristlenose are sold as unnamed Ancistrus trade lines with size and breeding behaviour that vary by import. We are not inventing fin wars the profiles do not support. Plan for one male cave, driftwood, and a real neon school; treat the caution as planning uncertainty, not a known fight.

Assessment details

  1. Data or identification limits

    Top issue

    At least one fish has common trade or ID ambiguity, so the numbers here may not match the individual in the shop.

  2. Compatible temperaments

    Both Bristlenose Pleco and Neon Tetra share a peaceful temperament.

  3. Compatible temperature range

    Both fish can comfortably share similar water temperatures.

“At least one fish has common trade or ID ambiguity, so the…”

Data or identification limits

Next steps

Concrete changes, not "research more" filler.

  • •Stock one bristlenose with clear cave space and driftwood, keep six or more neons as a school, and avoid a vague second male fighting over a log. Assume trade-name fish sit in a behaviour range rather than a certainty.
  • •Neon Tetra should be kept in a group of at least 6 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 Bristlenose Pleco + 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: medium. Driven by the lower-confidence profile (Bristlenose Pleco): Typical care sources — trade names for this fish get mixed up, so verify the ID before you buy.

Full tank-mate guides

Related pair checks

Bristlenose Pleco + Neon Tetra — common questions

Can Bristlenose Pleco live with Neon Tetra?
Yes, if you plan for it. The verdict is CAUTION mainly because bristlenose identification in the trade is ambiguous, not because neons and bristlenose routinely clash. Give the pleco wood, a cave, and a proper neon school.
What tank size do you need for Bristlenose Pleco and Neon Tetra together?
Plan around 80 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?
Data or identification limits. 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?
Neon Tetra should be kept in a group of at least 6 for best health and behaviour.