Eastern rainbowfish compatibility
Every pairing AquariumHQ has assessed for Eastern rainbowfish, derived from stored behavioural and environmental traits. Each verdict links to the reasoning behind it — including where the evidence runs out.
The species record is on the Eastern rainbowfish page. Any pairing not listed here can be assessed on demand with the compatibility checker.
What decides this species' pairings
Counted across every assessment above — the dimensions that actually raise concerns for this animal, rather than the ones a care sheet would list.
| Dimension | Pairings raising it | Share |
|---|---|---|
| ph | 40 | 44% |
| territory | 33 | 37% |
| temperature | 32 | 36% |
| breeding aggression | 27 | 30% |
| predation | 23 | 26% |
| activity mismatch | 12 | 13% |
Environmental compromise
Whether a shared temperature, pH and hardness band exists is a necessary condition, not evidence that it suits both animals. This counts how good the overlap actually is.
| Overlap quality | Pairings |
|---|---|
| Forced compromise — neither animal is where it wants to be | 38 |
| Workable | 30 |
| Comfortable for both | 16 |
| No overlap at all | 3 |
| One animal at the edge of its range | 3 |
Every assessed pairing
Grouped by verdict, worst first.
Incompatible (18)
Should not be attempted. At least one factor is expected to cause harm.
- with Black ghost knifefish5 concerns
- with Celestial pearl danio1 concern
- with Chili rasbora5 concerns
- with Clown knifefish5 concerns
- with Ember tetra3 concerns
- with Firehead tetra3 concerns
- with Giant gourami6 concerns
- with Goldfish2 concerns
- with Iridescent shark2 concerns
- with Koi carp2 concerns
- with Neon tetra2 concerns
- with Oscar4 concerns
- with Pea puffer2 concerns
- with Pygmy corydoras2 concerns
- with Redtail catfish4 concerns
- with Rope fish4 concerns
- with Silver arowana5 concerns
- with White Cloud Mountain minnow2 concerns
Poor match (21)
Workable only in unusual circumstances. Not a pairing to plan around.
- with Amano shrimp1 concern
- with Angelfish5 concerns
- with Bala shark2 concerns
- with Cardinal tetra3 concerns
- with Cherry shrimp1 concern
- with Clown loach2 concerns
- with Discus5 concerns
- with Dwarf gourami6 concerns
- with Frontosa4 concerns
- with German blue ram3 concerns
- with Ghost shrimp1 concern
- with Gold nugget pleco3 concerns
- with Harlequin rasbora2 concerns
- with Honey gourami4 concerns
- with Moonlight gourami7 concerns
- with Pearl gourami5 concerns
- with Senegal bichir3 concerns
- with Serpae tetra2 concerns
- with Severum4 concerns
- with Siamese fighting fish5 concerns
- with Tinfoil barb1 concern
Conditional (27)
Can work, but only if the stated conditions are met.
- with American flagfish3 concerns
- with Black ruby barb1 concern
- with Bleeding heart tetra2 concerns
- with Blue acara2 concerns
- with Cherry barb1 concern
- with Convict cichlid2 concerns
- with Electric blue hap2 concerns
- with Electric yellow cichlid2 concerns
- with Firemouth cichlid2 concerns
- with Flavescent peacock2 concerns
- with Golden wonder killifish1 concern
- with Green terror2 concerns
- with Jack Dempsey3 concerns
- with Jewel cichlid2 concerns
- with Kribensis2 concerns
- with Kuhli loach2 concerns
- with Mystery snail1 concern
- with Nerite snail1 concern
- with Otocinclus1 concern
- with Panda corydoras1 concern
- with Peacock gudgeon2 concerns
- with Red zebra cichlid3 concerns
- with Rummy-nose tetra3 concerns
- with Scissortail rasbora1 concern
- with Silver dollar2 concerns
- with Skunk loach3 concerns
- with Tiger barb1 concern
Generally compatible (11)
Usually works. Minor points to watch are listed below.
- with Bladder snail1 concern
- with Bolivian ram1 concern
- with Bristlenose pleco1 concern
- with Common pleco1 concern
- with Doctor fish1 concern
- with Molly1 concern
- with Peppered corydoras1 concern
- with Rainbow shark1 concern
- with Red swamp crayfish1 concern
- with Red-tailed black shark1 concern
- with Siamese algae eater1 concern
Compatible (13)
Requirements align and no behavioural conflict is expected.
- with Bloodfin tetrano concerns
- with Bronze corydorasno concerns
- with Guppyno concerns
- with Indian glassfishno concerns
- with Kissing gouramino concerns
- with Pictus catfishno concerns
- with Platyno concerns
- with Red-eye tetrano concerns
- with Sailfin mollyno concerns
- with Swordtailno concerns
- with Upside-down catfishno concerns
- with Yoyo loachno concerns
- with Zebra daniono concerns
Verdict distribution
| Verdict | Pairings | What it means |
|---|---|---|
| Conditional | 27 | Can work, but only if the stated conditions are met. |
| Poor match | 21 | Workable only in unusual circumstances. Not a pairing to plan around. |
| Incompatible | 18 | Should not be attempted. At least one factor is expected to cause harm. |
| Compatible | 13 | Requirements align and no behavioural conflict is expected. |
| Generally compatible | 11 | Usually works. Minor points to watch are listed below. |