Compatibility Report
GuideMyTank compatibility analysis for Glass Catfish and Least Killifish.
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.
Glass Catfish and Least Killifish receive a conditional verdict from the current structured assessment. Glass Catfish is recorded as peaceful with an aggression level of 1/10; Least Killifish 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.
Glass Catfish has a recorded temperature range of 75–80°F and pH range of 6–7.5. Least Killifish is recorded at 68–78°F and pH 6.5–8. Their shared planning window is 75–78°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.
Glass Catfish sets the larger listed base aquarium requirement at 30 gallons; the other listed minimum is 5 gallons. Glass Catfish is the larger adult by the recorded maximum, reaching 3 inches, compared with 1.2 inches. These figures are starting constraints, not a stocking-capacity calculation, because the complete group sizes and bioload still matter.
Glass Catfish is a calm species associated with the mid zone and moderate flow. Least Killifish is moderate, uses the top zone, and has a moderate flow preference. Glass Catfish should be planned as a group of at least 6, while least killifish should be planned as a group of at least 6. The aquarium must support both social structures without forcing either species into insufficient space.
Glass Catfish is recorded as a carnivore with intermediate care, while Least Killifish is a omnivore with intermediate 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.
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 Glass Catfish and Least Killifish.