What fish can live with Peppered Corydoras?

Use the "Often compatible" lists as a shortlist, not a stocking plan. Always run the pair tool and check the footprint of your actual tank first. Verify behaviour for Peppered Corydoras against your own reading before you buy.

What tank mates should you avoid with Peppered Corydoras?

Avoid Oscar, Jack Dempsey, Green Terror based on size, temperament, or predation risk on file.

What size tank do Peppered Corydoras need for a community?

80L is the planning floor for adult swimming space and bioload headroom. Long-term, a 98L+ tank lets adults use the full footprint without crowding the next species. Footprint, meaning length and front-to-back depth, matters as much as raw volume for active or territorial species.

Peppered Corydoras tank mates

A hardy cool-water cory that tolerates a wider temperature range than most. Similar care to bronze cory; needs six fish and smooth substrate.

Evidence: partially verified

Confidence: high

Lists below are built from this species record (safest, best with, risky, unsafe) — each link opens a pair-level check, not a guarantee.

← Full Peppered Corydoras profile·Compatibility checker·Tank builder·More catfish

Best tank mates (on file)

Merged from conservative safest and best with fields — de-duplicated by species.

Guppy Pair check
The Peppered Corydoras profile lists Guppy as both safe and a recommended pairing. Guppy swims in the top zone while Peppered Corydoras stays in the bottom, so the two will not crowd the same water column.
Harlequin Rasbora Pair check
The Peppered Corydoras profile lists Harlequin Rasbora as both safe and a recommended pairing. Harlequin Rasbora schools in groups of 6 or more, so plan room for the whole group rather than one fish. Harlequin Rasbora swims in the middle zone while Peppered Corydoras stays in the bottom, so the two will not crowd the same water column.
Neon Tetra Pair check
The Peppered Corydoras profile lists Neon Tetra as both safe and a recommended pairing. Neon Tetra schools in groups of 6 or more, so plan room for the whole group rather than one fish. Neon Tetra swims in the middle zone while Peppered Corydoras stays in the bottom, so the two will not crowd the same water column.
Platy Pair check
The Peppered Corydoras profile lists Platy as both safe and a recommended pairing. Platy swims in the middle zone while Peppered Corydoras stays in the bottom, so the two will not crowd the same water column.

Risky or situational

From risky tank mates and broad avoid with (excluding “unsafe” below). May work with species-only setups, more water, or mature systems — read the pair page.

None on file beyond the safe list.

Fish to avoid with Peppered Corydoras

From the unsafe list — predation, aggression, or space rules on this profile.

Oscar See why (pair)
Oscar reaches 35cm and is flagged predatory. Peppered Corydoras at 7cm is prey-sized for it. Oscar needs at least 300L, far above the 80L minimum for Peppered Corydoras. The tank that houses one stresses the other. Oscar is rated aggressive and Peppered Corydoras is rated peaceful. No community-style planning carries that gap.
Jack Dempsey See why (pair)
Jack Dempsey reaches 25cm and is flagged predatory. Peppered Corydoras at 7cm is prey-sized for it. Jack Dempsey needs at least 200L, far above the 80L minimum for Peppered Corydoras. The tank that houses one stresses the other. Jack Dempsey is rated aggressive and Peppered Corydoras is rated peaceful. No community-style planning carries that gap.
Green Terror See why (pair)
Green Terror reaches 30cm and is flagged predatory. Peppered Corydoras at 7cm is prey-sized for it. Green Terror needs at least 300L, far above the 80L minimum for Peppered Corydoras. The tank that houses one stresses the other. Green Terror is rated aggressive and Peppered Corydoras is rated peaceful. No community-style planning carries that gap.

Tank size and groups

Published minimum for Peppered Corydoras: 80L — group minimum 5 (schooling).
Compatibility changes when the tank is too short for turning, too little for a real school, or too warm for one species and not the other — that is why pair checks include tank context, not only temperament.
Nearest litre hub to this minimum: 80L hub.

Plan before you buy

Pair checks for every mix, then multi-species stocking in the builder.

Open compatibility checker Tank builder

Filtration & heating

A 80L minimum tank for Peppered Corydoras needs a filter rated for at least 320L/hr turnover and a heater maintaining 18–26°C.

Filter buying guide →Heater buying guide →Beginner plants guide →