Turquoise Rainbowfish – Melanotaenia lacustris
Turquoise Rainbowfish – Melanotaenia lacustris is a beautiful, peaceful fish with an endearing personality. It is the larger species of the Rainbowfish. They have constantly changing coloring, however, always feature beautiful colors. These qualities make the Lake Kutubu Rainbowfish one of the most amazing freshwater fish in the hobby.
Common Name: Turquoise Rainbowfish
Scientific Name: Melanotaenia lacustris
Typical Adult Fish Size: 8 – 10 CM
Natural Habitat: Southeast Asia, Thailand
Ideal Tank Ecosystem: Turquoise Rainbows are a very popular aquarium fish, and have little requirements. A peaceful community aquarium. Rainbows would ideally be in a planted tank. When housing Turquoise Rainbow’s in captivity, it is important to provide them with a longer sized aquarium that has a selection of plants and plenty of room for these guys to meander about the tank. They are also well known jumpers, therfore recommend their aquarium should be fully covered to prevent them from jumping out of the aquarium if they get startled.
Recommended Aquarium Capacity: 55 gallon / 240 litre
Species Compatibility: Peaceful community tank mates Molly’s, Guppies, Platy and Tetra’s.
Aquarium Water Temperature: 23 – 32°C / 73 – 89°F
Aquarium Water pH: Range pH 4.5 – 7.5
Feeding: The Turquoise Rainbowfish should be fed once or twice a day. All food should be consumed after just a few minutes. A flake food diet is a good base for the Rainbow, however it is better to be supplemented with live food. Your Rainbow will survive on flake food alone, but the live food makes the Rainbow thrive. Frozen or live brine shrimp are popular Rainbow fish foods because brine shrimp is simple to produce at home. Bloodworms, micro worms, fruit flies, mosquito larvae, daphnia and diced Earthworms are other examples of suitable food for your Turquoise Rainbowfish – Melanotaenia lacustris.
Sexing: Males are brighter coloring than females but only slightly brighter color most of the time. When in breeding mode the alpha male, dominant male, will brighten up to a stunning tone of electric blue and his forehead will shade to yellow. This yellow on his forehead will reflect to attract the females.
Breeding: Rainbow’s deposits its eggs in vegetation or other suitable substrate with mosses like Java moss. It’s best spawned in a pair or group comprising a single male and two or three females in a larger tank.
Females are capable of distributing many eggs per day. The adults can be added to the spawning tank and left in place for a week or so, or until the first fry are noticed. You can also check the substrate daily for eggs. Then the eggs can carefully be removed manually. Males can be aggressive in their chase to find a female. Providing a number of solid cover using large-leaved plants or wood like driftwood,Manzanita, petrified wood, will encourage safety for the fish and reduce stress levels.
Other Considerations: Ensure that your freshwater fish aquarium is cycled before adding these fish.
- Praecox Rainbowfish – Melanotaenia praecox
- Boesemani Rainbowfish – Melanotaenia boesemani
- Axelrodi Rainbowfish – Melanotaenia herbertaxelrodi
- Eastern Rainbowfish – Melanotaenia splendida
- Threadfin Rainbowfish – Iriatherina werneri
- Madagascan Rainbowfish – Bedotia madagascariensis
- Celebes Rainbowfish – Telmatherina ladigesi
- Yellow Guppy – Poecilia reticulata
- Blood Red Molly – Poecilia latipinna
- Silver Molly – Poecilia sphenops