Tiretrack Eel (Mastacembelus armatus)


An intricately marked member of the spiny eel family (Mastacembelidae), the Tiretrack Eel is found in river systems throughout much of Southeast Asia including Java and Sumatra in Indonesia. In the wild it tends to be found in shallow, relatively slow moving waters including small rivers, swamps, and seasonally flooded forest. In the aquarium, Tiretrack Eels are often shy at first but are intelligent and personable fish which will soon learn to beg for food and recognize their owners. A predator in the wild, they will readily feed on live feeder fish and earthworms at first and can be weaned on to frozen foods over time. Hardy and adaptable, they make an excellent addition to an aquarium large enough to house what will be a substantially large fish as an adult and will get along well with most tankmates too large to be eaten.


Tire Track Eel (Mastacembelus armatus)

Origin: Wild Thailand
Diet: Predator, feeds on insects, fish, and crustaceans in the wild. Will accept frozen foods but can be finicky at first.
Adult Size: 30″
Recommended Tank Size: 100 gallon+
Compatibility: Generally not aggressive towards tankmates too big to be considered a meal. Should not be kept with overly aggressive fish which may nip at their fins or that may outcompete them for food.

Preferred Water Parameters
pH:                          7.0  – 8.2
Temp:                     76-82F
Ammonia:              0ppm
Nitrite:                    0ppm
Nitrate:                  <30ppm

Shipping Note: Due to size, the need for extra packing, and space requirements, larger sizes may not be eligible for our flat rate shipping. We strongly recommend shipping very large fish via air cargo when possible. Please contact us for a quote or for additional shipping info.