General information -  The Arapaima gigas is a heavy elongate fish with large, ornate scales.

One of the largest freshwater fishes, reaching 15 ft (4.5 m) in length and 441 lb  (200 kg). 

This fish is air-breathing fish that surface every 10–20 minutes. This behavior makes it an

accessible target for harpoon fishermen.  The Arapaima gigas is an important protein source in

the diet of people living along the river,  but large pirarucu have become less

common in some areas, owing to over fishing.      

Common Name - Arapaima, Giant Arapaima, Pirarucu 

Scientific Name - Arapaima gigas 

Family - Osteoglossidae 

Origin - Amazon River system and French Guiana 

Size -  reaching 15 ft (4.5 m) in length and 441 lb ( 200 kg)       

First discovered - Cuvier, 1829 

Nutrition - The arapaima feeds on fish and other small animals, including birds and  Frogs. 

Behavior - Aggressive, a highly predatory fish that acts aggressively towards similar  Species 

Maintenance and care – Requires at least 200 gallon (about 760 litter) size tank and at least

96'' (about 250 cm) in length.  Large open swimming areas should be provided.

A tight fitting cover is required as this  large species can jump.

Water changes should perform often and powerful filtration system is essential.  

Water Parameters – temperature: 75F – 86F (24C-30C), PH: 6-7.2, DH: 2-12.  

Breeding – Breeding is nearly impossible in an aquarium. In nature the Arapaima gigas breed at

the end of the dry season. Male builds nest in sandy bottoms at the end of the dry season. 

A large female may deposit as many as 50,000 eggs, which are then fertilized by  the male. 

Large eggs and young are guarded by the male and occasionally by the female.  

Parental care lasts up to 14 weeks.