TheCongo Tetra, also known as the Congo fish, is one of the most stunning and elegant freshwater schooling fish in the aquarium hobby. With their iridescent rainbow-like shimmer, long flowing fins, and peaceful nature, Congo Tetras make a spectacular addition to any planted community aquarium. As one of the most colorful tetras types, the Congo Tetra fish is loved for its graceful swimming and compatibility with a wide variety of peaceful tank mates. Native to the slow-moving rivers and tributaries of the Congo River Basin in Central Africa, the Congo Tetra (Phenacogrammus interruptus) is a larger tetra species known for its brilliant coloration. Males display metallic blue and orange hues with a reflective violet sheen that sparkles under aquarium lighting. Females are more subdued but equally graceful, creating a beautiful shimmering school when kept in groups. A full grown Congo Tetra reaches about 3–3.5 inches (7–9 cm), making them one of the largest tetra species available in the aquarium trade. Their elongated bodies, flowing fins, and iridescent scales create a mesmerizing effect as they swim through the tank. The combination of Congo Tetra size, color, and movement makes them a perfect centerpiece fish for medium to large freshwater aquariums. Congo Tetras are peaceful, active schooling fish that thrive in groups of six or more. They get along well with other calm species, making them perfect for community tanks. Ideal Congo Tetra tank mates include Rainbowfish, Rasboras, Gouramis, Corydoras catfish, and peaceful African cichlids. Avoid aggressive or fin-nipping species, as these can damage their long fins. A properly designed Congo Tetra tank should include open swimming spaces, gentle water flow, and a dark substrate to enhance their vibrant colors. At Splashy Fish tropical fish store, our Congo Tetra for sale and other Tetras for sale are tank-bred, grown, and sold with love and care. Visit our fish store online or aquarium in Virginia for more high-quality freshwater fish for sale. We have a lot more fish available for sale, such as betta fish for sale, aquatic plants for sale, freshwater shrimp for sale, and other aquarium supplies. What You Can Expect From Congo Tetra Iridescent rainbow coloration that sparkles under aquarium lighting Peaceful schooling fish ideal for community aquariums Grows up to 3–3.5 inches when fully mature Active and hardy species suitable for intermediate aquarists Excellent choice among tetras types for centerpiece displays Congo Tetra Water Parameters Tank Size: Minimum 30 gallons for a small school (ideal Congo Tetra tank size) Temperature: 75°–82°F (24°–28°C) pH: 6.0–7.5 Hardness: 4–12 dGH Filtration: Moderate flow with clean, well-oxygenated water and weekly maintenance Congo Tetra Care Guidelines Diet: Omnivorous. Provide high-quality flakes or micro pellets as a staple, supplemented with frozen or live foods such as bloodworms, brine shrimp, and daphnia to enhance color and fin growth. Tank Setup: Decorate with live plants, driftwood, and open swimming spaces. Darker substrates and gentle lighting help bring out the metallic shine of Congo Tetras. Behavior: Peaceful and social; happiest when kept in schools of six or more. Display best coloration in calm, planted aquariums with consistent water quality. Visit here to explore more about How to Care for Tetra Fish. Congo Tetra Frequently Asked Questions (FAQs) Will Congo Tetra eat shrimp? Congo Tetras may eat very small shrimp or baby shrimp, but they generally leave adult shrimp such as Amano Shrimp or larger Neocaridina species alone. Since Congo Tetra fish are mid-level swimmers and not active predators, they rarely hunt unless shrimp are tiny or newly molted. If you plan to keep shrimp in a Congo Tetra tank, make sure the aquarium has plenty of plants, moss, or hiding spots to protect young shrimp from being eaten. Are Congo Tetra aggressive? No, Congo Tetras are peaceful and non-aggressive fish. They are ideal for community aquariums and get along well with other calm species such as rainbowfish, rasboras, gouramis, and corydoras catfish. However, males may occasionally chase each other during breeding or territorial displays, especially in smaller tanks. How many Congo Tetra should I keep together? It’s best to keep at least 6 Congo Tetras together. These are social schooling fish that thrive when kept in groups. In a school, Congo Tetras display brighter colors, reduced stress, and more natural swimming behavior. Larger groups of 8–12 make for a more dynamic and visually stunning display in medium to large aquariums. { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{ "@type": "Question", "name": "Will Congo Tetra eat shrimp?", "acceptedAnswer": { "@type": "Answer", "text": "Congo Tetras may eat very small shrimp or baby shrimp, but they generally leave adult shrimp such as Amano Shrimp or larger Neocaridina species alone. Since Congo Tetra fish are mid-level swimmers and not active predators, they rarely hunt unless shrimp are tiny or newly molted. If you plan to keep shrimp in a Congo Tetra tank, make sure the aquarium has plenty of plants, moss, or hiding spots to protect young shrimp from being eaten." } },{ "@type": "Question", "name": "Are Congo Tetra aggressive?", "acceptedAnswer": { "@type": "Answer", "text": "No, Congo Tetras are peaceful and non-aggressive fish. They are ideal for community aquariums and get along well with other calm species such as rainbowfish, rasboras, gouramis, and corydoras catfish. However, males may occasionally chase each other during breeding or territorial displays, especially in smaller tanks." } },{ "@type": "Question", "name": "How many Congo Tetra should I keep together?", "acceptedAnswer": { "@type": "Answer", "text": "It’s best to keep at least 6 Congo Tetras together. These are social schooling fish that thrive when kept in groups. In a school, Congo Tetras display brighter colors, reduced stress, and more natural swimming behavior. Larger groups of 8–12 make for a more dynamic and visually stunning display in medium to large aquariums." } }] }
