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When young, they're silvery and not too colorful, but later when mature they're very colorful, making it worth the wait. This is also a very hardy fish.
Comments: This is a Premium Pet Fish, and we never see Premium Rainbowfish like these in any of the live fish stores or online fish stores that we visit.
Premium Pet Fish are more energetic, hardier, and have brighter colors with a beautiful metallic sheen.
Click here to learn more about our Premium Pet Fish.
Origin: Their ancestors originally lived in the Mamberamo and Wapoga River systems in northern New Guinea, Indonesia, but now Rainbowfish are now found living in aquariums throughout most of the world.
Maximum Size: In aquariums, male Rainbowfish can grow to be about 3.25" long, including their tails. Females are usually smaller and plumper when mature.
Usually mature Rainbowfish are smaller than 3.25" long, but rarely an old Neon Rainbowfish is bigger.
Behaviors: Most Rainbowfish are active swimmers and are rarely aggressive, but males do quarrel with each other.
Compatibility: Some recommended tank mates include, other varieties of Rainbowfish, Clown Loaches, Danios, Barbs, Gouramis, and many other medium size aquarium fish.
Click here to read more about compatible groups of pet fish.
Click here to learn about aquarium temperature, aquarium thermometers, and aquarium heaters.
Feeding: Premium Fish Food Flakes when small and small Premium Pellet Food when larger.
Click here to learn more about and shop online for premium fish foods.
Water Conditions: Rainbowfish seem to be tolerant of a wide range of water conditions. Probably a pH of about 7.2 with moderate hardness is best.
Most water in the US is a little bit harder and has a higher pH but seems to be OK, so it's probably best NOT to adjust the pH or the hardness of the water.
Here in our facilities the water is hard and the pH is usually about 7.8. We ship them in this water.
Click here for a lot more information about aquarium water conditions.
Aquarium Size: It is probably best to house the fish in at least a 30-gallon aquarium, but bigger is better. Keep at most one Rainbowfish per 2-gallons, when they're small.
Larger Rainbowfish need about 4-gallons per Rainbowfish. Huge Rainbowfish need even more water per fish and will do better in a bigger aquarium, like a 60-gallon aquarium.
Click here for more about aquarium gravel.
Click here to learn more about aquarium filters.
Usually males will become bigger and much more colorful. Females are plumper and have less color.
If you patiently raise them up, you'll be amazed by their colors.
Names: The scientific name of Goldie River Rainbowfish is Melanotaenia goldiei.
Variations: There are a couple of slight color variations of this species, and many other species of Rainbowfish with a wide variety of colors and patterns.
Click here for a lot more information about keeping and caring for Rainbowfish, including a picture gallery.
We hope you've enjoyed reading these comments.
DrTom - 07/14/2015
All of our fish are Premium Quality Fish from the best suppliers in the world. Our fish have better health, more energy and brighter colors, as you can see in our pictures on this website.
We have 380-aquariums with lots-and-lots of popular aquarium fish plus lots-and-lots of rare fish!
We consider ourselves to be the link between the world's best sources of fish and the world's best customers. We love our work, and we are very responsible about caring for our fish and then shipping them carefully.
We also offer lots and lots of information about keeping and caring for pet fish, all from the knowledge of the Bailey Brothers, who have a combined total of 100+ years of experience as breeders, wholesalers, and retailers of pet fish!
Our fish and our customers are treated with the best of care, and we work energetically everyday to make sure every customer enjoys their new fishy friends.
When you purchase pet fish from us, you know you're receiving premium quality fish and premium quality service.
"Received my fish last night and was so pleased! They all arrived alive and appeared to be healthy.
"Once in the tank, they became very active and are now thriving in their new home.
"Beautiful fish, I asked for color and aquariumfish delivered. Processing and shipping was extremely quick."
Nevin and DrTom, the Bailey Brothers
This website is owned and operated by the Bailey Brothers, DrTom and Nevin, who've been together in the fish business for more than 50-years.
The Product Manager has been with the company for more than 35-years.
So we feel very confident that this is the fishiest crew anywhere.