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Compatibility Report

Can Wrestling Halfbeak Live With Yoyo Loach?

GuideMyTank compatibility analysis for Wrestling Halfbeak and Yoyo Loach.

Planning verdict

caution

Conditional

Only plan this pair if every listed condition can be met, and have a separation plan if stress or aggression appears.

Data confidence
high
Assessment source
Structured data model
Data completeness
100%

Blocking risks

No automatic safety blocker was found.

Conditions and cautions

  • Both species may show territorial behavior.
  • Tank size requirements differ moderately.
  • Activity level or feeding speed may stress a slow, delicate, or long-finned species.
  • Two non-peaceful species require cautious stocking, sufficient space, and close behavior monitoring.

Supporting factors

  • Temperature ranges overlap well.
  • pH requirements overlap well.
  • Both species have compatible schooling or group behavior.
  • No predation risk detected.
Wrestling Halfbeak profileYoyo Loach profileMethodology and limitations

Why This Pair Received Its Verdict

Wrestling Halfbeak and Yoyo Loach receive a conditional verdict from the current structured assessment. Wrestling Halfbeak is recorded as semi-aggressive with an aggression level of 4/10; Yoyo Loach is recorded as semi-aggressive with an aggression level of 4/10. The recommendation is based on the combined water, space, behavior, grouping, and predation checks below rather than on species names alone.

  • Temperature ranges overlap well.
  • pH requirements overlap well.
  • Both species may show territorial behavior.
  • Both species have compatible schooling or group behavior.

Helpful Links

Use the Compatibility CheckerRead the Compatibility Disclaimer

Water Parameter Overlap

Wrestling Halfbeak has a recorded temperature range of 75–82°F and pH range of 6.5–8. Yoyo Loach is recorded at 75–86°F and pH 6.5–7.5. Their shared planning window is 75–82°F for temperature and 6.5–7.5 for pH. A shared aquarium must stay inside the overlap rather than merely touching each species’ outer tolerance.

Aquarium Space and Adult Size

Yoyo Loach sets the larger listed base aquarium requirement at 40 gallons; the other listed minimum is 20 gallons. Yoyo Loach is the larger adult by the recorded maximum, reaching 6.1 inches, compared with 3 inches. These figures are starting constraints, not a stocking-capacity calculation, because the complete group sizes and bioload still matter.

Behavior and Social Requirements

Wrestling Halfbeak is a calm species associated with the top zone and moderate flow. Yoyo Loach is boisterous, uses the bottom zone, and has a moderate flow preference. Wrestling Halfbeak should be planned as a group of at least 4, while yoyo loach should be planned as a group of at least 5. The aquarium must support both social structures without forcing either species into insufficient space.

Husbandry Fit

Wrestling Halfbeak is recorded as a carnivore with advanced care, while Yoyo Loach is a omnivore with intermediate care. Their listed preferred tank styles are planted and rockwork. Feeding access, cover, open swimming room, filtration, and observation should be planned around the more demanding requirement rather than averaged between the two species.

What Would Change the Decision?

Use these pair-specific boundaries before treating the verdict as an acceptable stocking plan.

  • Do not proceed unless one stable temperature and pH range can be maintained for both Wrestling Halfbeak and Yoyo Loach; acclimation does not correct an incompatible long-term range.
  • Treat size, predation, and fin-damage warnings as stop conditions. Extra plants cannot reliably make an unsafe predator-to-prey or fin-target pairing safe.
  • Use broken sight lines and multiple retreats, then separate the pair if either species shows persistent chasing, hiding, clamped fins, or loss of feeding access.
  • Recalculate space using the full adult group sizes—not one specimen of each species—and reject the plan if either species must be understocked socially to fit.
  • Prepare a cycled backup or separation option before introduction; individual behavior can be less predictable than species-level records.

Aquarium Planning Checklist

  • Keep temperature within 75–82°F.
  • Keep pH within 6.5–7.5.
  • Use at least the larger 40-gallon base requirement before accounting for the complete stocking plan.
  • Wrestling Halfbeak should be planned as a group of at least 4; yoyo loach should be planned as a group of at least 5.
  • Provide a separation plan and monitor feeding, stress, chasing, damaged fins, and access to preferred habitat zones.

Final Recommendation

Only plan this pair if every listed condition can be met, and have a separation plan if stress or aggression appears.

Sources and Data Provenance

These references support the underlying species records used by this assessment. They do not necessarily evaluate this exact pair together.

  • my-fish.orgcare · medium confidence
  • fishbase.secare · medium confidence
  • fishbase.secare · medium confidence
  • thesprucepets.comcare · medium confidence
  • en.wikipedia.orgtaxonomy · medium confidence
  • en.wikipedia.orgtaxonomy · medium confidence
  • en.wikipedia.orgtaxonomy · medium confidence
Read the full methodology and limitations
Report quality
supported
Analysis version
2026.09.1
Species data updated
Sep 29, 2026
Review status
Structured automated assessment

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