What fish can live with Turquoise / Lake Kutubu rainbowfish?

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 Turquoise / Lake Kutubu rainbowfish against your own reading before you buy.

What tank mates should you avoid with Turquoise / Lake Kutubu rainbowfish?

Avoid African Cichlid, Oscar, Green Terror based on size, temperament, or predation risk on file.

What size tank do Turquoise / Lake Kutubu rainbowfish need for a community?

200L is the planning floor for adult swimming space and bioload headroom. Long-term, a 250L+ 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.

Turquoise / Lake Kutubu rainbowfish tank mates

A deep-bodied 12 cm rainbow with brilliant blue-green scales. Needs a school in a long tank; full colour requires competitive male display.

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 Turquoise / Lake Kutubu rainbowfish profile·Compatibility checker·Tank builder·More rainbowfish

Best tank mates (on file)

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

Boesemani Rainbowfish Pair check
The Turquoise / Lake Kutubu rainbowfish 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 Turquoise / Lake Kutubu rainbowfish 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 Turquoise / Lake Kutubu rainbowfish stays in the middle, so the two will not crowd the same water column.
Dwarf Gourami Pair check
The Turquoise / Lake Kutubu rainbowfish profile lists Dwarf Gourami as both safe and a recommended pairing. Dwarf Gourami is a peaceful beginner-care species with a 60L minimum. Run the pair checker for your specific tank before stocking.
Dwarf Neon Rainbowfish Pair check
The Turquoise / Lake Kutubu rainbowfish profile lists Dwarf Neon Rainbowfish as a recommended pairing. Dwarf Neon Rainbowfish schools in groups of 8 or more, so plan room for the whole group rather than one fish.
Neon Tetra Pair check
The Turquoise / Lake Kutubu rainbowfish profile lists Neon Tetra as a safe tank mate. 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.

German Blue Ram Open pair check
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Angelfish Open pair check
Angelfish reaches 20cm and is flagged predatory or as likely to eat small fish. Adult-size Turquoise / Lake Kutubu rainbowfish at 12cm is inside that gape range. Angelfish is rated semi-aggressive, so expect chasing, fin damage, or display behaviour directed at Turquoise / Lake Kutubu rainbowfish. Run the pair checker before stocking.
Guppy Open pair check
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Tiger Barb Open pair check
Tiger Barb is flagged as a fin-nipper and Turquoise / Lake Kutubu rainbowfish 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 Turquoise / Lake Kutubu rainbowfish. Run the pair checker before stocking.
Pea Puffer Open pair check
Pea Puffer is flagged as a fin-nipper and Turquoise / Lake Kutubu rainbowfish 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. Pea Puffer is flagged predatory. Equal-size adults usually coexist, but the moment one is stressed, sick, or smaller after a moult, it becomes prey. Pea Puffer is rated semi-aggressive, so expect chasing, fin damage, or display behaviour directed at Turquoise / Lake Kutubu rainbowfish. Run the pair checker before stocking.

Fish to avoid with Turquoise / Lake Kutubu rainbowfish

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

African Cichlid See why (pair)
African Cichlid is rated aggressive and Turquoise / Lake Kutubu rainbowfish is rated peaceful. No community-style planning carries that gap.
Oscar See why (pair)
Oscar reaches 35cm and is flagged predatory. Turquoise / Lake Kutubu rainbowfish at 12cm is prey-sized for it. Oscar is rated aggressive and Turquoise / Lake Kutubu rainbowfish is rated peaceful. No community-style planning carries that gap.
Green Terror See why (pair)
Green Terror reaches 30cm and is flagged predatory. Turquoise / Lake Kutubu rainbowfish at 12cm is prey-sized for it. Green Terror is rated aggressive and Turquoise / Lake Kutubu rainbowfish is rated peaceful. No community-style planning carries that gap.

Tank size and groups

Published minimum for Turquoise / Lake Kutubu rainbowfish: 200L — 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: 200L 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 200L minimum tank for Turquoise / Lake Kutubu rainbowfish needs a filter rated for at least 800L/hr turnover and a heater maintaining 24–28°C.

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