Rainbowfish are made up of two important teams. The primary group accommodates the Households Melanotaeniidae and Bedotiidae, which embody bigger, lively fish within the genera Melanotaenia, Glossolepis and Bedotia, just like the Madagascar Rainbow. (An exception is the tiny Threadfin Rainbow, I. werneri, which needs to be handled like a Pseudomugilid.) The second group contains the Households Pseudomugilidae and Telmatherinidae. Pseudomugilidae is comprised of smaller, extra docile fish, also known as “Blue Eyes”. The Household Telmatherinidae features a lone species, Marosatherina ladegesi, the Celebese Rainbow. It isn’t exhausting to know how rainbowfish get their identify when you see a college of brilliantly coloured, grownup Melanotaeniids or a pair of “Blue Eyes” in full spawning gown.
A Rainbowfish’s Pure Habitat
Rainbowfish are native to Australia, Papua New Guinea and elements of Indonesia, the place they’re present in streams, rivers, lakes and swamps. Some wild rainbowfish populations have turn into threatened by human exercise, in addition to the introduction of invasive species. Most rainbowfish accessible within the pastime are produced commercially on farms in Southeast Asia and Florida.
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Rainbowfish Water Necessities
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Many Melanotaeniids come from exhausting, alkaline water, however captive bred fish accessible at present will thrive in a variety of water situations. They do finest between 74° and 78° F, at a pH of seven.0 to eight.0 and alkalinity between 5° and 20° dKH (90 ppm to 360 ppm). Madagascar Rainbows come from extra acidic water and needs to be saved between 74° and 80°F, pH of 6.5 to 7.5 and alkalinity between 3° and 14°dKH (55 ppm to 250 ppm). Pseudomugilids want temperatures between 76° and 82° F, pH of 6.5 to 7.5 and alkalinity between 5° and 10° dKH (90 ppm to 180 ppm). If the aquarium is saved in a room under 74° F, use an Aqueon Aquarium Heater to keep up the right temperature. Keep good filtration and do a ten% water trade each week or 25% each 2 weeks utilizing an Aqueon Aquarium Water Changer or Siphon Vacuum Gravel Cleaner. Remember to deal with faucet water with Aqueon Water Conditioner earlier than refilling your aquarium!
Housing Necessities for Rainbowfish
Melanotaeniids are lively fish and want loads of swimming area. Smaller species just like the Neon Dwarf Rainbow (Melanotaenia. praecox) and the Celebese Rainbow (M. ladegesi), will thrive in a 30-gallon aquarium, whereas most different Melanotaeniid rainbowfish want an aquarium of not less than 50 gallons or bigger. Satisfactory cowl within the type of tall crops and different buildings is necessary, however open swimming areas needs to be supplied as nicely. The “Blue Eyes” and Threadfin Rainbows are completely glad in group aquariums of 20 gallons or well-planted species tanks of 10 gallons or much less.
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Melanotaeniid rainbowfish are peaceable but lively and get together with most equally sized, non-aggressive fish. Completely different species may be blended collectively and will also be saved with bigger tetras, peaceable barbs, rasboras, danios, catfish and even non-aggressive cichlids reminiscent of Kribensis. Rainbowfish are shoalers and needs to be saved in teams of 6 or extra for finest impact. Males will exhibit their finest colours as they vie for consideration from females. Pseudomugilids and Threadfin Rainbows are docile and typically shy, so tank mates needs to be chosen fastidiously. These might embody pygmy rasboras, small tetras, peaceable barbs, Otocinclus and Corydoras catfish. All the time seek the advice of an aquarium skilled earlier than shopping for any new fish on your aquarium.
What Do Rainbowfish Eat?
Rainbowfish are omnivores and want each vegetable matter and meat-based meals of their eating regimen. Melanotaeniids will thrive on Aqueon Tropical Flakes, Colour Flakes, Spirulina Flakes and Betta Deal with. Pseudomugilids will settle for these meals as nicely, however might require the next proportion of frozen and even dwell meals to advertise optimum well being and coloration. For finest outcomes, rotate your fishes’ eating regimen every day and feed solely what they will eat in below 2 minutes, a couple of times a day.
Rainbowfish Breeding Stage – Intermediate
Rainbowfish are egg scatterers and supply no parental care as soon as the eggs are laid. Many Rainbowfish spawn in vegetation or may be induced to deposit their eggs in yarn mops. A slight improve in temperature will usually induce spawning exercise. Eggs hatch in 7 to 21 days relying on temperature and species.
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