Compatibility Report
GuideMyTank compatibility analysis for Pearl Gourami and Molly.
Planning verdict
cautionOnly plan this pair if every listed condition can be met, and have a separation plan if stress or aggression appears.
No automatic safety blocker was found.
Pearl Gourami and Molly receive a conditional verdict from the current structured assessment. Pearl Gourami is recorded as peaceful with an aggression level of 2/10; Molly is recorded as peaceful with an aggression level of 2/10. The recommendation is based on the combined water, space, behavior, grouping, and predation checks below rather than on species names alone.
Pearl Gourami has a recorded temperature range of 75–82°F and pH range of 5.5–7.5. Molly is recorded at 72–82°F and pH 7–8.5. Their shared planning window is 75–82°F for temperature and 7–7.5 for pH. A shared aquarium must stay inside the overlap rather than merely touching each species’ outer tolerance.
Pearl Gourami sets the larger listed base aquarium requirement at 30 gallons; the other listed minimum is 20 gallons. Pearl Gourami is the larger adult by the recorded maximum, reaching 4.7 inches, compared with 4 inches. These figures are starting constraints, not a stocking-capacity calculation, because the complete group sizes and bioload still matter.
Pearl Gourami is a calm species associated with the top zone and low flow. Molly is active, uses the top zone, and has a moderate flow preference. Pearl Gourami does not have a recorded minimum school larger than one, while molly should be planned as a group of at least 3. The aquarium must support both social structures without forcing either species into insufficient space.
Pearl Gourami is recorded as a omnivore with easy care, while Molly 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.
Use these pair-specific boundaries before treating the verdict as an acceptable stocking plan.
Only plan this pair if every listed condition can be met, and have a separation plan if stress or aggression appears.
These references support the underlying species records used by this assessment. They do not necessarily evaluate this exact pair together.
Continue with the most relevant care and compatibility resources for Pearl Gourami and Molly.