Wallace’s Shoehead Cat (Tetranematichthys wallacei)


An uncommon and oddly shaped catfish found in a number of Amazon and Orinoco tributaries, Wallace’s Shoehead Cat is named for its unusually flat, broad head. A shy and primarily nocturnal fish, they spend most of the daylight hours in the wild hidden among driftwood or in leaf litter, emerging at night to feed on insects and smaller fish. In the aquarium they are fairly hardy, but will do best with plenty of plants or driftwood for cover. While they are peaceful towards similarly sized tankmates they will eat any fish that can fit in their large mouths.



Wallace’s Shoehead Cat (Tetranematichthys wallacei)

Origin: Wild Colombia
Locale: Rio Orinoco
Diet: Insects and small fish. Chopped eathworm and frozen foods will usually be accepted in the aquarium.
Adult Size: 8″
Recommended Tank Size: 50 Gallon
Compatibility: Predatory toward fish small enough to be eaten but otherwise peaceful

Preferred Water Parameters
pH:                          6.0 – 7.5
Temp:                     76-82F
Ammonia:              0ppm
Nitrite:                    0ppm
Nitrate:                  <30ppm