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Compatibility Report

Can Cockatoo Cichlid Live With Sterbai Cory?

GuideMyTank compatibility analysis for Cockatoo Cichlid and Sterbai Cory.

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

  • One species may be semi-aggressive and require planning.
  • Breeding aggression can turn an otherwise workable pairing into a caution setup.

Supporting factors

  • Temperature ranges overlap well.
  • pH requirements overlap well.
  • Both species have compatible schooling or group behavior.
  • No predation risk detected.
  • Tank size requirements align.
Cockatoo Cichlid profileSterbai Cory profileMethodology and limitations

Why This Pair Received Its Verdict

Cockatoo Cichlid and Sterbai Cory receive a conditional verdict from the current structured assessment. Cockatoo Cichlid is recorded as semi-aggressive with an aggression level of 4/10; Sterbai Cory is recorded as peaceful with an aggression level of 1/10. 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.
  • One species may be semi-aggressive and require planning.
  • Both species have compatible schooling or group behavior.

Helpful Links

Use the Compatibility CheckerRead the Compatibility Disclaimer

Water Parameter Overlap

Cockatoo Cichlid has a recorded temperature range of 75–82°F and pH range of 6–8. Sterbai Cory is recorded at 75–82°F and pH 6–7.6. Their shared planning window is 75–82°F for temperature and 6–7.6 for pH. A shared aquarium must stay inside the overlap rather than merely touching each species’ outer tolerance.

Aquarium Space and Adult Size

Cockatoo Cichlid sets the larger listed base aquarium requirement at 20 gallons; the other listed minimum is 20 gallons. Cockatoo Cichlid is the larger adult by the recorded maximum, reaching 3.2 inches, compared with 2.6 inches. These figures are starting constraints, not a stocking-capacity calculation, because the complete group sizes and bioload still matter.

Behavior and Social Requirements

Cockatoo Cichlid is a calm species associated with the cave zone and moderate flow. Sterbai Cory is moderate, uses the bottom zone, and has a moderate flow preference. Cockatoo Cichlid should be planned as a group of at least 2, while sterbai cory should be planned as a group of at least 6. The aquarium must support both social structures without forcing either species into insufficient space.

Husbandry Fit

Cockatoo Cichlid is recorded as a carnivore with intermediate care, while Sterbai Cory is a omnivore with easy care. Their listed preferred tank styles are blackwater and planted. 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 Cockatoo Cichlid and Sterbai Cory; 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 6–7.6.
  • Use at least the larger 20-gallon base requirement before accounting for the complete stocking plan.
  • Cockatoo Cichlid should be planned as a group of at least 2; sterbai cory should be planned as a group of at least 6.
  • 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.

  • fishbase.secare · medium confidence
  • fishbase.secare · medium confidence
  • en.wikipedia.orgtaxonomy · medium confidence
  • en.wikipedia.orgtaxonomy · medium confidence
  • es.wikipedia.orgtaxonomy · medium confidence
Read the full methodology and limitations
Report quality
supported
Analysis version
2026.09.1
Species data updated
Jul 2, 2026
Review status
Structured automated assessment

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