Amazon Leaf Fish (Monocirrhus polyacanthus)


An amazing example of mimicry in nature, the Amazon Leaf Fish both looks and acts exactly like a dead leaf as a way to ambush its prey in the wild. When small fish venture too close, it extends its surprisingly large mouth and inhales them in one quick motion. In the aquarium, they make for an extremely unique display fish, especially in small groups. They are peaceful with nearly any fish too big to be eaten, but tankmates should be chosen carefully as fast-moving or aggressive fish can cause them stress. Although they are relatively hardy, feeding can be a challenge as they can be difficult to wean off live food fish or insects.


Amazon Leaf Fish (Monocirrhus polyacanthus)

Origin: Wild Peru
Locale: Rio Nanay
Diet: Ambush predator, feeds primarily on small fish and insects
Adult Size: 4.5″+
Recommended Tank Size: 30 gallons+
Compatibility: Peaceful and shy, but will eat any fish they can fit in their mouths.

Preferred Water Parameters
pH:                          6.0 – 7.5
Temp:                     78-82F
Ammonia:              0ppm
Nitrite:                    0ppm
Nitrate:                  <30ppm