Rainbow Fish
Rainbowfish are one of the best choices for anyone looking to add color, movement, and tranquility to their aquarium. Native to the pristine waters of Australia, New Guinea, and surrounding islands, Rainbowfish are celebrated for their stunning iridescent scales and easygoing nature. Whether you're a seasoned aquarium enthusiast or just starting your aquatic journey, Rainbowfish is an excellent addition to your tank.
Why Choose Rainbowfish for Your Aquarium?
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Peaceful & Community-Friendly: Unlike many other fish species, Rainbowfish are known for their calm and non-aggressive nature. They thrive in peaceful community tanks and get along well with a variety of species, making them an ideal choice for any freshwater aquarium.
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Bright & Stunning Colors: With their vibrant, iridescent scales, Rainbowfish are some of the most colorful freshwater fish available. Their striking hues of blue, green, yellow, and red will add a burst of color to your aquarium, creating a dazzling display of movement and beauty.
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Perfect for Planted Tanks: Rainbowfish naturally inhabit the clear, slow-moving waters of Australia and New Guinea, often surrounded by lush vegetation. They love well-planted tanks with plenty of open swimming space, making them a perfect fit for aquarists who enjoy creating lush, vibrant aquascapes.
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Interactive & Social: Known for their social nature, Rainbowfish thrive in schools and display engaging behavior. Watching a school of these vibrant fish swim together is both mesmerizing and entertaining, and they are sure to capture the attention of anyone who views your aquarium.
Popular Rainbowfish Varieties
Explore the different Rainbowfish varieties available:
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Boesemani Rainbowfish (Melanotaenia boesemani): Known for its striking combination of bright blue and orange hues, this species is one of the most colorful in the Rainbowfish family.
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Dwarf Rainbowfish (Melanotaenia praecox): A smaller species that retains the vibrant colors of its larger relatives, perfect for smaller aquariums.
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Turquoise Rainbowfish (Melanotaenia lacustris): With their stunning turquoise-colored bodies and red fins, these fish add a unique touch to any aquarium.
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Red Rainbowfish (Glossolepis incisus): This species is known for its brilliant red and orange coloration, making it a standout in community tanks.
Rainbowfish Care Guide
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Tank Size & Setup: A minimum of a 30-gallon tank is ideal for Rainbowfish, especially when keeping them in schools of 6 or more. They thrive in tanks with plenty of swimming space, aquatic plants, and hiding spots.
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Water Parameters: To keep your Rainbowfish healthy, maintain a temperature between 72-82°F (22-28°C), a pH of 7.0-8.0, and a slightly alkaline water environment. Regular water changes and good filtration are essential for their well-being.
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Diet & Nutrition: Rainbowfish are omnivores, so they thrive on a balanced diet of high-quality flakes, pellets, and live foods or frozen foods such as brine shrimp, daphnia, and bloodworms. They also enjoy algae-based foods and plant matter.
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Tank Mates: Rainbowfish are peaceful and compatible with a variety of other species, such as Tetras, Gouramis, Corydoras, and peaceful Loaches. Avoid aggressive fish that may stress them or nipping species that could damage their fins.
See more details about Care Guide For Your Rainbowfish here.
Rainbowfish for Sale Online
Browse our premium collection of Rainbowfish for sale and find the perfect addition to your freshwater aquarium. Visit Splashy Fish to buy them online or at our aquarium store in Virginia for more freshwater fish for sale, betta fish for sale, freshwater shrimp for sale, live aquatic plants for sale, and aquarium supplies.
Order now and bring home the beauty of Rainbowfish today!
Rainbowfish Frequently Asked Questions (FAQs)
Are Rainbowfish aggressive?
Generally, they’re peaceful, but:
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Males can be boisterous or mildly territorial during spawning.
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Avoid keeping them with slow-moving, long-finned fish (e.g., fancy guppies or bettas).
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Best tankmates: Other peaceful mid-to-top swimmers.
Why is my Rainbowfish losing color?
Possible causes:
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Stress (from poor water quality, tankmates, or small schools)
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Inadequate diet
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Aging or illness
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Inconsistent lighting or day/night cycles
Solution: Improve water quality, diet, and ensure proper tankmates and group sizes.
Can I keep Rainbowfish with shrimp or snails?
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Snails: Rainbowfish are totally peaceful with most types of snails, including Nerite, Mystery, and Ramshorn.
- Shrimp: It depends. Larger shrimp like Amano shrimp usually do fine, especially in planted tanks with hiding spots. But smaller shrimp like Cherry shrimp or Crystal shrimp may get chased or eaten, especially the babies..
Testimonials
Let customers speak for us
Splashy Fish has a large variety of fish and plants, came home with a bunch of very nice Cardinal Tetras which are doing great in my planted tank.
Splashy Fish has a large variety of fish and plants, came home with a bunch of very nice Corydoras Julii which are doing great in my planted tank.
Went into the Splashy store and left with more than I intended! It was incredibly stocked with THE most beautiful healthy dumbo guppies I’ve seen in the area. Got a few along with a bunch of neon green tetras that have all settled wonderfully into my tank! The shop associates were all so knowledgable and kind. Shout out to Allan who helped us out! He really knew his stuff! I’ve checked out quite a few local LFSes and this is the best by far. Already planning my next haul!
GOOD CUSTOMER SERVICES ,ATTENTIVE AND INFORMATIVE, GOOD VARIETY OF FISH AND PLANTS
The service was amazing when providing the plants to me and they look super nice! Thank you :)
10/10 - very satisfied with the health of my new betta and the level of service received from staff. Thank you Splashy Fish team!
Local pickup was very easy. The store is very clean, with lots of healthy fish and plants. Friendly staff. Has become my go to LFS.
My chilis arrived in excellent condition and have already begun to color up! Great packaging and always good quality disease free fish.
I would highly recommend the daphnia culture that was provided as an alternative! I had been moving away from Omega One on the saltwater side of my endeavors, but wanted to give this a shot. Unfortunately, the pack I received is to expire this April. Still 5/5 for the customer service and the live food source. During this trip, I was also able to select an amazing betta fish that I am to pick up next week! Thank you Victoria and Splashy Fish team, I look forward to more visits to this shop:)
Very helpful, knowledgeable, friendly, and patient people. Clean, easy to get around shop with lots of fish and fish-related items to select from. Will definitely shop here again!!!
