What fish can live with Ropefish / reed fish?

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 Ropefish / reed fish against your own reading before you buy.

What tank mates should you avoid with Ropefish / reed fish?

Avoid Chili Rasbora, Guppy, Ember Tetra based on size, temperament, or predation risk on file.

What size tank do Ropefish / reed fish 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.

Ropefish / reed fish tank mates

An eel-like fish at 30 cm that eats anything small enough to swallow. Peaceful with fish its own size. Can escape through any gap and breathes air.

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 Ropefish / reed fish profile·Compatibility checker·Tank builder·More oddball

Best tank mates (on file)

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

Bala / silver shark Pair check
The Ropefish / reed fish 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.
Boesemani Rainbowfish Pair check
The Ropefish / reed fish 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. Boesemani Rainbowfish grows to about 11cm, which is borderline mouth-size for an adult 30cm Ropefish / reed fish. Water parameters barely overlap between the two, so check the temperature and pH ranges on both profiles before stocking.
Giant danio Pair check
The Ropefish / reed fish 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. Giant danio grows to about 11cm, which is borderline mouth-size for an adult 30cm Ropefish / reed fish.
Pictus catfish Pair check
The Ropefish / reed fish profile lists Pictus catfish as a recommended pairing. Pictus catfish schools in groups of 5 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.

Neon Tetra Open pair check
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Corydoras Catfish Open pair check
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Dwarf Gourami Open pair check
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Pea Puffer Open pair check
Pea Puffer is flagged as a fin-nipper and Ropefish / reed fish 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 Ropefish / reed fish. Run the pair checker before stocking.

Fish to avoid with Ropefish / reed fish

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

Chili Rasbora See why (pair)
Ropefish / reed fish is flagged as predatory or as likely to eat small fish, and Chili Rasbora at 2cm is well within an adult Ropefish / reed fish's gape.
Guppy See why (pair)
Ropefish / reed fish is flagged as predatory or as likely to eat small fish, and Guppy at 5cm is well within an adult Ropefish / reed fish's gape.
Ember Tetra See why (pair)
Ropefish / reed fish is flagged as predatory or as likely to eat small fish, and Ember Tetra at 2cm is well within an adult Ropefish / reed fish's gape.

Tank size and groups

Published minimum for Ropefish / reed fish: 200L — group minimum 2 .
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 Ropefish / reed fish needs a filter rated for at least 800L/hr turnover and a heater maintaining 24–30°C.

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