Big Mouth Wallago Catfish (Wallagonia attu)


An enormous predatory catfish from the larger river systems of Thailand, Myanmar, and India,  the Big Mouth Wallago Cat is a true monster fish and an important food fish species throughout its native habitat. Relatively hardy and undemanding, their main requirement in the aquarium is ample space for a fish that can grow to over 6 feet in size. Realistically only a heated pond or enormous custom aquarium can house this species for life. Although generally not aggressive with comparably-sized tankmates, they will attempt to swallow fish nearly their own size.



Big Mouth Wallago Catfish (Wallagonia attu)

Origin: Wild Thailand
Diet: Predator and fish eater. Will usually accept frozen and prepared foods in the aquarium
Adult Size: 70″
Recommended Tank Size: Only the largest custom aquariums or indoor ponds are appropriate to maintain this species
Compatibility: Predatory but generally not aggressive. Will eat anything they can fit in their surprisingly large mouths

Preferred Water Parameters
pH:                          6.5 – 7.5
Temp:                     78-82F
Ammonia:              0ppm
Nitrite:                    0ppm
Nitrate:                  <30ppm

Shipping Note: Due to their large size and packing requirements, some sizes may not eligible for our flat rate shipping. We strongly recommend shipping large fish via air freight when possible. Please contact us for a quote or for more information.