Compatibility brief
Can Chili Rasbora live with Threadfin rainbowfish?
Often a workable match in a suitable, well-run tank. Still verify behaviour in your setup.
In many setups, Chili Rasbora and Threadfin rainbowfish are often kept together in a suitable peaceful community when temperature and pH are matched and the tank is sized for adults. Individual behaviour, filtration, and layout still decide whether it works in your home.
Compatibility score
Profile confidence: high
Order of checkstank volume vs adults → predation mouth gap → temperament / fin nipping → shared water windows.
60L
Combined minimum footprint reference for these two species: about 60L (larger active fish often want more length).
Assessment details
Compatible temperaments
Both Chili Rasbora and Threadfin rainbowfish share a peaceful temperament.
Compatible temperature range
Both fish can comfortably share similar water temperatures.
Next steps
Concrete changes, not "research more" filler.
- •Chili Rasbora should be kept in a group of at least 8 for best health and behaviour.
- •Threadfin rainbowfish should be kept in a group of at least 8 for best health and behaviour.
Try instead
- →Chili Rasbora should be kept in a group of at least 8 for best health and behaviour.
- →Threadfin rainbowfish should be kept in a group of at least 8 for best health and behaviour.
- Seriously Fish. Boraras brigittae
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Boraras brigittae
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Boraras brigittae
Secondary: general species context; verify all husbandry numbers against a dedicated aquarium care sheet and your test kit, not a single table row.
- Seriously Fish. Iriatherina werneri
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Iriatherina werneri
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Iriatherina werneri
Secondary: general species context; verify all husbandry numbers against a dedicated aquarium care sheet and your test kit, not a single table row.
Try this next
Build the full stocking list with Chili Rasbora + Threadfin rainbowfish
Plan further
Try both species in the full-stock tank check, or open either fish profile for mates lists. 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: high. Based on multiple reputable aquarium care sources with strong agreement.