Compatibility Report
GuideMyTank compatibility analysis for Peter's Elephantnose Fish and Pygmy Cory.
Planning verdict
compatibleThis pair is a reasonable starting point when both species receive their required tank size, group size, water conditions, and routine care.
No automatic safety blocker was found.
Peter's Elephantnose Fish and Pygmy Cory receive a recommended verdict from the current structured assessment. Peter's Elephantnose Fish is recorded as semi-aggressive with an aggression level of 4/10; Pygmy 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.
Peter's Elephantnose Fish has a recorded temperature range of 73–82°F and pH range of 6.8–7.2. Pygmy Cory is recorded at 72–79°F and pH 6–7.5. Their shared planning window is 73–79°F for temperature and 6.8–7.2 for pH. A shared aquarium must stay inside the overlap rather than merely touching each species’ outer tolerance.
Peter's Elephantnose Fish sets the larger listed base aquarium requirement at 55 gallons; the other listed minimum is 10 gallons. Peter's Elephantnose Fish is the larger adult by the recorded maximum, reaching 9 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.
Peter's Elephantnose Fish is a calm species associated with the bottom zone and low flow. Pygmy Cory is moderate, uses the bottom zone, and has a moderate flow preference. Peter's Elephantnose Fish does not have a recorded minimum school larger than one, while pygmy cory should be planned as a group of at least 8. The aquarium must support both social structures without forcing either species into insufficient space.
Peter's Elephantnose Fish is recorded as a carnivore with advanced care, while Pygmy Cory 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.
This pair is a reasonable starting point when both species receive their required tank size, group size, water conditions, and routine care.
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 Peter's Elephantnose Fish and Pygmy Cory.