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The Opaline Gourami is also known as the Marbled Gourami, and is a color variation of the Blue or Three-Spot Gourami. The Opaline Gourami is silvery pale-blue, with darker blue markings. This gourami is a rather peaceful fish that is very comical to watch as a juvenile. It is considered a labyrinth fish. Although it is equipped with gills, it also has a special organ which allows it to breathe directly from the air. As a result, it must have access to the surface of the water in the aquarium.
The Opaline Gourami is compatible with a variety of tank mates that are of similar size and temperament. While males can be territorial with each other, they become timid around other, more aggressive fish. The ideal tank set-up would be a minimum of 20 gallons and have plenty of live plants, as well as rocks and driftwood for use as hiding places.
The best way to differentiate between the male and female Opaline Gourami is by the dorsal fin. In the male, the dorsal fin is long and pointed, while the female's is shorter and rounded. When ready to breed, the male builds a bubblenest and begins to entice the female by swimming back and forth, flaring his fins and raising his tail. When this behavior is noticed, the water level should be reduced to 6 inches. After spawning, the female should be removed to a separate tank as the male may become aggressive toward her. The male will tend to the eggs until they hatch. After hatching, there should be frequent water changes, especially during the third week, as this is when the labyrinth organ is developing. The fry should be fed infusoria and newly hatched brine shrimp (nauplii).
The Opaline Gourami is an omnivore and prefers both algae-based foods as well as meaty foods. An algae-based flake food, along with freeze-dried bloodworms, tubifex, and brine shrimp will provide this fish with the proper nutrition.
Ideal tank mates include: Mollies, Swordtails, Guppies, Platies, Tetras, Danios, Rasboras, Rainbowfish, Barbs, Loaches, Plecos and Scavenger Catfish.
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Name: Opaline (Blue) Gourami (Trichogaster trichopterus)
Family: Belontiidae Range: South China Sea; Malaysia Size: Up to 6 inches Diet: Omnivore Tank Set-up: Freshwater: Densely planted, rocks, driftwood Tank Conditions: 72-82°F; pH 6.0-8.8; dH 5-35 Minimum Tank Capacity: 20 gallons Light: Medium Temperament: Semi-Aggressive Swimming Level: Top to middle Care Level: Easy Reproduction: Egg Layer — Bubblenest Builder |
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