Gulf gambusia vs Butterfly splitfin: can they live together?

Verdict: Not recommended

Their temperature ranges don't overlap.
A pH of 6.5–7.8 suits both.

Side by side

	Gulf gambusia	Butterfly splitfin
Adult size	5 cm (2 in)	8 cm (3.1 in)
Minimum tank	20 L (5 US gal)	75 L (20 US gal)
Temperature	22–25°C (72–77°F)	26–32°C (79–90°F)
pH	6.5–7.8	6.0–8.0
Hardness	–	9–19 dGH (161–339 ppm)
Temperament	–	Peaceful
Community tank	Good	Good
Care level	–	Easy
Diet	Omnivore	Omnivore