Whiptail catfish vs Emerald catfish: can they live together?

Verdict: With caution

The Whiptail catfish grows about twice as long as the Emerald catfish; watch for bullying or predation.
Both are comfortable at 24–26°C (75–79°F).
A pH of 6.0–7.0 suits both.
Minimum tank for the pair: 75 L (20 US gal)

Side by side

	Whiptail catfish	Emerald catfish
Adult size	16 cm (6.3 in)	8 cm (3.1 in)
Minimum tank	–	75 L (20 US gal)
Temperature	24–26°C (75–79°F)	22–28°C (72–82°F)
pH	6.0–7.0	5.8–8.0
Hardness	3–8 dGH (54–143 ppm)	2–30 dGH (36–535 ppm)
Temperament	Peaceful	Peaceful
Community tank	–	Good
Care level	Easy	Easy
Diet	Omnivore	Omnivore