Species Profile
Keyhole Cichlid
Cleithracara maronii
Cichlidspeaceful
Adult size
4.5″
Minimum tank
30 gal
Temperature
72–79°F
pH
6–7.5
Schooling
Solitary OK
Water level
mid
Diet
Pellets, frozen, live
Notes
Easygoing peaceful cichlid that prefers to hide and rarely bothers tankmates. Named for the keyhole-shaped marking on the side. Wants soft acidic water, hiding caves, and quiet dither fish to encourage it out into view.
Compatible Tankmates
Best tank mates for Keyhole Cichlid
Every species below passes the compatibility engine when paired with Keyhole Cichlidin a suitably sized tank. Verdicts come from the same rules the builder uses — click a card to see that species' own care profile and its tank mates in turn.
Cardinal Tetra
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Rummynose Tetra
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Harlequin Rasbora
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Zebra Danio
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Fancy Guppy
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Platy
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Molly
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Swordtail
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Dwarf Gourami
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Honey Gourami
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Bolivian Ram
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Bronze Corydoras
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Photo: Bartosz Senderek / Wikimedia Commons · Source · CC-BY-SA-2.5