Chili Rasbora vs Endler's Livebearer: can they live together?

A structured comparison of water overlap, adult size, social needs and behavioral risk.

caution

Possible, but with meaningful cautions

Their pH overlap is narrow.

Practical response: Confirm your stable source-water pH sits within the shared range.

Chili Rasbora

Adult size
2 cm / 0.8 in
Tank reference
25+ L / 6.6+ US gal
Group
10+
Zone
mid
Temperature
22–28°C / 71.6–82.4°F

Endler's Livebearer

Adult size
3.5 cm / 1.4 in
Tank reference
30+ L / 7.9+ US gal
Group
4+
Zone
top
Temperature
22–28°C / 71.6–82.4°F

Water parameter overlap

Temperature
22–28°C / 71.6–82.4°F shared range
pH
pH 7.0–7.0 shared range

Behavior and space

A very small shoaling fish best with gentle filtration and similarly tiny tankmates. Small active livebearers that reproduce rapidly in mixed-sex groups.

A compatibility answer should also consider the actual tank dimensions, number of each fish, filtration, planting and other occupants. Two species can be reasonable together in a long, structured aquarium yet become a poor pairing when compressed into a small footprint.

Common questions

Can Chili Rasbora live with Endler's Livebearer?

The StockingLab verdict is caution: Their pH overlap is narrow.

Do their temperatures overlap?

22–28°C / 71.6–82.4°F shared range.

Should I trust compatibility calculators completely?

No. Individual behavior, sex ratios, breeding condition, aquascape and tank size can change the outcome. Use the result to identify risks, then verify care requirements before purchase.