Trichogaster: Greek, thrix = hair + Greek, gaster = stomach
There are now lots of aquarium bred colour morphs for this fish all with different trade names but they are still Trichogaster lalius and they all require the same basic care. In recent years captive bred dwarf gouramis have had a poor reputation because a disease has spread throughout the population.
Wild dwarf gouramis are omnivores and eat small insects, crustaceans, worms and plant matter. In captivity they are easy to please and accept all commercially prepared foods of a suitable size, they need a varied diet which should include fresh food and some live or frozen food on a regular basis.
Dwarf gouramis is easy for fish with the wild colouration because the males are well coloured while the females are silvery grey. Aquarium morphs which have the same colours for both sexes are more difficult to tell apart.
Dwarf gouramis is relatively straight forward. A separate tank is essential and can be bare apart from some floating plants. The pair need to be kept apart and conditioned by feeding them lots of live or frozen food such as blood worms. If the two fish are introduced together before the female is ready to spawn the female will be attacked. The male will begin to build a nest of small bubbles and this is where the eggs will be ket. When the female is ready to spawn the male will display to attract her to the nest where he will wrap around her and both eggs and sperm will be released together. The eggs are buoyant and will float up to the nest and any which stray away will be collected up and placed there. Once spawning is complete the male will once again become aggressive toward the female and she must be removed. The male alone will care for the brood although with so much line breeding in captivity this instinct isn't very strong in some individuals. The eggs hatch after about 36 hrs and the fry become free swimming after a couple more days. At this point the male should be removed for safety. The fry will take infusoria, liquid fry food, hard boiled egg yolk until they are big enough to accept newly hatched brine shrimps.
The ICUN Redlist of Threatened Species lists Dwarf gouramis as 'least concern' the fish is wide spread but may face over exploitation by the aquarium trade in parts of its range.
pH: 6 - 8
dGH: 5 - 19
Temperature: 25 - 28°C (78 - 82°F)
Size: 5cm (2in)
Min tank size: 60 litres
Difficulty level: Easy
Aquarium type: Community
Swimming level: All levels
Origin: Bangladesh; India (Arunachal Pradesh, Assam, Bihar, Manipur, Uttaranchal, Uttar Pradesh, West Bengal); Nepal; Pakistan. Dwarf gouramis have also been widely introduced beyond their natural range.
Habitat: Fresh water only, slow moving streams, rivulets and lakes with plenty of vegetation. Also from rice fields, irrigation channels and other agricultural lands.
Species: T. lalius (Hamilton, 1822)
Synonyms: Trichopodus lalius, Colisa lalius, Polyacanthus lalius, Colisa unicolor