Compatibility Report
GuideMyTank compatibility analysis for Threadfin Rainbowfish and Zebra Loach.
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.
Threadfin Rainbowfish and Zebra Loach receive a conditional verdict from the current structured assessment. Threadfin Rainbowfish is recorded as peaceful with an aggression level of 1/10; Zebra Loach 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.
Threadfin Rainbowfish has a recorded temperature range of 73–82°F and pH range of 6–7. Zebra Loach is recorded at 73–79°F and pH 6–7.5. Their shared planning window is 73–79°F for temperature and 6–7 for pH. A shared aquarium must stay inside the overlap rather than merely touching each species’ outer tolerance.
Zebra Loach sets the larger listed base aquarium requirement at 30 gallons; the other listed minimum is 20 gallons. Zebra Loach is the larger adult by the recorded maximum, reaching 4 inches, compared with 2 inches. These figures are starting constraints, not a stocking-capacity calculation, because the complete group sizes and bioload still matter.
Threadfin Rainbowfish is a moderate species associated with the top zone and low flow. Zebra Loach is active, uses the bottom zone, and has a moderate flow preference. Threadfin Rainbowfish should be planned as a group of at least 8, while zebra 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.
Threadfin Rainbowfish is recorded as a omnivore with intermediate care, while Zebra Loach 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.
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 Threadfin Rainbowfish and Zebra Loach.