What fish can live with Denison's / red-line torpedo barb?

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 Denison's / red-line torpedo barb against your own reading before you buy.

What tank mates should you avoid with Denison's / red-line torpedo barb?

Avoid Oscar, African Cichlid, Pea Puffer based on size, temperament, or predation risk on file.

What size tank do Denison's / red-line torpedo barb need for a community?

250L is the planning floor for adult swimming space and bioload headroom. Long-term, a 300L+ 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.

Denison's / red-line torpedo barb tank mates

A spectacular 12 cm red-stripe torpedo barb that needs a real school in a long tank. Conservation-sensitive and demanding; not an impulse purchase.

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 Denison's / red-line torpedo barb profile·Compatibility checker·Tank builder·More barb

Best tank mates (on file)

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

Bala / silver shark Pair check
The Denison's / red-line torpedo barb profile lists Bala / silver shark as both safe and a recommended pairing. Bala / silver shark schools in groups of 5 or more, so plan room for the whole group rather than one fish. Bala / silver shark grows bigger than Denison's / red-line torpedo barb (35cm vs 12cm). Stock the Denison's / red-line torpedo barb group large enough to outnumber the Bala / silver shark, or the smaller fish ends up bullied or off food.
Boesemani Rainbowfish Pair check
The Denison's / red-line torpedo barb profile lists Boesemani Rainbowfish as both safe and a recommended pairing. Boesemani Rainbowfish schools in groups of 6 or more, so plan room for the whole group rather than one fish.
Corydoras Catfish Pair check
The Denison's / red-line torpedo barb profile lists Corydoras Catfish as both safe and a recommended pairing. Corydoras Catfish schools in groups of 6 or more, so plan room for the whole group rather than one fish. Corydoras Catfish swims in the bottom zone while Denison's / red-line torpedo barb stays in the middle, so the two will not crowd the same water column.
Giant danio Pair check
The Denison's / red-line torpedo barb profile lists Giant danio as both safe and a recommended pairing. Giant danio schools in groups of 6 or more, so plan room for the whole group rather than one fish.
Neon Tetra Pair check
The Denison's / red-line torpedo barb profile lists Neon Tetra as a recommended pairing. Neon Tetra schools in groups of 6 or more, so plan room for the whole group rather than one fish.

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.

Tiger Barb Open pair check
Tiger Barb is flagged as a fin-nipper and Denison's / red-line torpedo barb carries the long-finned risk profile (veil tails, trailing fins). Expect torn fins within days unless the nipper is in a proper group and the long-finned fish has plenty of cover. Tiger Barb is rated semi-aggressive, so expect chasing, fin damage, or display behaviour directed at Denison's / red-line torpedo barb. Run the pair checker before stocking.
Yoyo Loach Open pair check
Yoyo Loach is rated semi-aggressive, so expect chasing, fin damage, or display behaviour directed at Denison's / red-line torpedo barb. Run the pair checker before stocking.
German Blue Ram Open pair check
Temperature ranges barely overlap between the two, so one species ends up living at the edge of its comfort window. Run the pair checker before stocking.

Fish to avoid with Denison's / red-line torpedo barb

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

Oscar See why (pair)
Oscar reaches 35cm and is flagged predatory. Denison's / red-line torpedo barb at 12cm is prey-sized for it. Oscar is rated aggressive and Denison's / red-line torpedo barb is rated peaceful. No community-style planning carries that gap.
African Cichlid See why (pair)
African Cichlid is rated aggressive and Denison's / red-line torpedo barb is rated peaceful. No community-style planning carries that gap.
Pea Puffer See why (pair)
Pea Puffer conflicts with Denison's / red-line torpedo barb on temperament, predation, or footprint. The juvenile size in a shop tank is not the figure that matters here.

Tank size and groups

Published minimum for Denison's / red-line torpedo barb: 250L — group minimum 6 (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: 250L hub.

Easier alternatives to consider

Conservative beginner-peaceful picks from the library — not replacements for reading, but a shorter on-ramp than this species for a first tank.

Plan before you buy

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

Open compatibility checker Tank builder

Filtration & heating

A 250L minimum tank for Denison's / red-line torpedo barb needs a filter rated for at least 1000L/hr turnover and a heater maintaining 15–25°C.

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

Related (care + temperament)

Other species that list Denison's / red-line torpedo barb

Reverse lookup: these profiles reference Denison's / red-line torpedo barb under safe or “best with” lists.