Compatibility brief
Can Harlequin Rasbora live with Mystery Snail?
Caution. Check the issues below before buying.
Compatibility score
Profile confidence: low
How we decideFishori checks adult size and predation risk, behaviour, water requirements and tank needs before giving a verdict.
60L
Combined minimum footprint reference for these two species: about 60L (larger active fish often want more length).
Assessment details
Data or identification limits
Top issueAt least one fish has common trade or ID ambiguity, so the numbers here may not match the individual in the shop.
Compatible temperature range
Both fish can comfortably share similar water temperatures.
“At least one fish has common trade or ID ambiguity, so the…”
Data or identification limits
Next steps
Concrete changes, not "research more" filler.
- •Harlequin Rasbora should be kept in a group of at least 6 for best health and behaviour.
- Seriously Fish. Trigonostigma heteromorpha
Supports: aquarium size, water chemistry, temperament and compatibility (primary care reference).
- FishBase. Trigonostigma heteromorpha
Supports: taxonomy and wild maximum size — translate to tank stocking, not a target number.
- Wikipedia. Trigonostigma heteromorpha
Supports: general species background and common-name orientation only.
- Aquarium Co-Op. Mystery Snail Care Guide
Primary: retailer care guide on tank size, calcium needs, breeding clutches, and the bridgesii-vs-canaliculata distinction.
- Applesnail.net. Pomacea bridgesii
Secondary: long-running hobby reference for apple snail biology, breeding, and species ID; useful for telling bridgesii from canaliculata.
Try this next
Build the full stocking list with Harlequin Rasbora + Mystery Snail
Plan further
Check each species’ mates list, size the glass, then verify the full stock in the builder. Methodology explains how verdicts are produced.
Individual fish vary in personality. Fishori uses conservative hobby rules. Observe any new introduction closely, feed thoughtfully, and keep a quarantine or backup plan. This is not veterinary advice.
Profile data confidence: medium. Driven by the lower-confidence profile (Mystery Snail): Typical care sources — trade names for this fish get mixed up, so verify the ID before you buy.