Emperor cichlid vs Blue orchid aulonocara: can they live together?

Verdict: Compatible

Both are comfortable at 25–26°C (77–79°F).
A pH of 7.8–8.3 suits both.
Minimum tank for the pair: 115 L (30 US gal)

Side by side

	Emperor cichlid	Blue orchid aulonocara
Adult size	8 cm (3.1 in)	10 cm (3.9 in)
Minimum tank	75 L (20 US gal)	115 L (30 US gal)
Temperature	25–26°C (77–79°F)	22–28°C (72–82°F)
pH	7.8–8.5	7.5–8.3
Hardness	10–25 dGH (178–446 ppm)	–
Temperament	Peaceful	Peaceful
Care level	Easy	Easy
Diet	Omnivore	Omnivore