Unicolor Eel (Mastacembelus unicolor)


An uncommonly imported and intricately patterned freshwater spiny eel, the Unicolor Eel is believed to inhabit Java and Sumatra in Indonesia, but their distribution and habitat in the wild remains unclear. Like their close relative the Fire Eel, this species is often shy at first but are intelligent and personable fish which will soon learn to beg for food and recognize their owners. Largely insectivorous in the wild, they will readily feed on live earthworms at first and can be weaned on to frozen foods over time. Although they can and sometimes will eat smaller fish, they are not particularly active hunters and most fast moving tankmates will not be at risk of becoming a meal. 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.


Fire Eel (Mastacembelus erythrotaenia)

Origin: Wild Indonesia
Locale: Sumatra
Diet: Predator, feeds on fish, insects, and crustaceans in the wild.
Adult Size: 24″+
Recommended Tank Size: 100 gallon
Compatibility: A predator but generally peaceful with any fish too large for them to consider food.

Preferred Water Parameters
pH:                          6.8 – 7.6
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 large fish via air cargo when possible. Please contact us for a quote or for additional shipping info.