Compatibility Report

Can Clown Loach Live With Three Spot Gourami?

GuideMyTank compatibility analysis for Clown Loach and Three Spot Gourami.

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.
One species needs a group while the other is solitary or territorial.
One species requires a significantly larger aquarium.
A schooling or shoaling species conflicts with a solitary territorial tankmate.

Supporting factors

Temperature ranges overlap well.
pH requirements overlap well.
No predation risk detected.

Clown Loach profile Three Spot Gourami profile Methodology and limitations

Why This Pair Received Its Verdict

Clown Loach and Three Spot Gourami receive a conditional verdict from the current structured assessment. Clown Loach is recorded as peaceful with an aggression level of 2/10; Three Spot Gourami is recorded as semi-aggressive with an aggression level of 5/10. 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.
One species needs a group while the other is solitary or territorial.

Water Parameter Overlap

Clown Loach has a recorded temperature range of 75–86°F and pH range of 6–7.5. Three Spot Gourami is recorded at 74–82°F and pH 6–8. Their shared planning window is 75–82°F for temperature and 6–7.5 for pH. A shared aquarium must stay inside the overlap rather than merely touching each species’ outer tolerance.

Aquarium Space and Adult Size

Clown Loach sets the larger listed base aquarium requirement at 100 gallons; the other listed minimum is 30 gallons. Clown Loach is the larger adult by the recorded maximum, reaching 12 inches, compared with 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

Clown Loach is a active species associated with the bottom zone and moderate flow. Three Spot Gourami is moderate, uses the top zone, and has a low flow preference. Clown Loach should be planned as a group of at least 6, while three spot gourami does not have a recorded minimum school larger than one. The aquarium must support both social structures without forcing either species into insufficient space.

Husbandry Fit

Clown Loach is recorded as a omnivore with advanced care, while Three Spot Gourami is a omnivore with easy care. Their listed preferred tank styles are planted 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 Clown Loach and Three Spot Gourami; 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 6–7.5.
Use at least the larger 100-gallon base requirement before accounting for the complete stocking plan.
Clown Loach should be planned as a group of at least 6; three spot gourami does not have a recorded minimum school larger than one.
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.orgcare · medium confidence
fishbase.secare · medium confidence
thesprucepets.comcare · medium confidence
thesprucepets.comcare · 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

Related Resources

Continue with the most relevant care and compatibility resources for Clown Loach and Three Spot Gourami.