Australian lungfish
Lifespan:50 years+
ADULT SIZE: about 36 '' in captivity
WATER:
pH 7-7.5,
10-12 dH,
75-84 F (24-29 C)
TANK SIZE: at least 5'x4'
TANK:
Use river rocks and a sand substrate. Provide open swimming areas and use a filter that creates current in at least one part of the tank
difuse lighting
PLANTS:
Vallisneria, Aponogeton, Ceratopteris, Bolbitis
Plants
Emerged:
Polygonum attenuatum
Ludwigia octovalvis
Pseudoraphis spinescens
Cynodon dactylon
Cyperus carinatus
C. conicus
C. vaginatus
C. javanicus
Ipomoea sp
Submerged:
Hydrilla verticillata
Myriophyllum verrucosum
Aponogeton Crispus
Najas tenuifolia
cryptocoryne wendtii
Floating:
Salvinia molesta
Spirodela oligorrhiza
Nymphoides indica
Water Requirements
The water should be low to medium in Hardness with a pH between 6.5 and 7.0, A temperature of 75degrees to 84degrees can be maintained with a standard aquarium heater.
The Australian Lungfish has a single lung, whereas all other species of lungfishes have paired lungs. During dry periods when streams become stagnant, or when water quality changes, lungfishes have the ability to surface and breathe air. When the Australian Lungfish surfaces to empty and refill its lung the sound is reportedly like that of the "blast from a small bellows". Under most conditions, this species breathes exclusively using its gills.
Food items include mainly frogs, tadpoles, small fishes, snails, shrimp and earthworms. It will also eat plant material. The eyesight of the Australian Lungfish has been reported to be poor and the location of prey was thought to be based on the sense of smell rather than sight. The recent work of Watt et al (1999) has shown that the Australian Lungfish can use electroreception to locate hidden prey. Their research on the anatomy of this species has shown the presence of organs similar to those used for the detection of electric signals in other fishes, such as sharks.
The Australian Lungfish is normally found in still or slow flowing pools in river systems of south-eastern Queensland. It occurs naturally in the Burnett and Mary River systems although has been introduced into other rivers and reservoirs in south-eastern Queensland and north-eastern New South Wales.
This species spawns at night from August to December with peak activity in October. Fertilized eggs are stuck to aquatic plants and hatching takes about three weeks. Growth is very slow, with young reaching 6 cm in length after 8 months and 12 cm after two years.-Anne