{"product_id":"congo-tetra-4cm","title":"Congo Tetra 4cm","description":"\u003cp\u003eThe \u003cstrong\u003eCongo Tetra 4cm\u003c\/strong\u003e is a young, shimmering African tetra known for its flowing fins and rainbow iridescence. Best kept in a good‑sized, planted community aquarium, the Congo Tetra 4cm really shines in a peaceful group with gentle flow and soft, slightly acidic water.\u003c\/p\u003e\n\u003cdiv class=\"mb-1 mt-2 whitespace-pre-line leading-relaxed first:mt-0\" data-sentry-component=\"P\" data-sentry-source-file=\"p.tsx\"\u003eThe \u003cstrong\u003eCongo Tetra 4cm\u003c\/strong\u003e is a juvenile of one of the most striking schooling tetras in the hobby. Originating from the Congo River basin in Africa, these fish develop long, flowing fins and a beautiful, shimmering body that reflects blues, violets, golds and greens under good lighting.\u003c\/div\u003e\n\u003cdiv class=\"mb-1 mt-2 whitespace-pre-line leading-relaxed first:mt-0\" data-sentry-component=\"P\" data-sentry-source-file=\"p.tsx\"\u003eAt around \u003cstrong\u003eCongo Tetra 4cm\u003c\/strong\u003e, they are still growing and colouring up, but already show the elegant shape and schooling behaviour that make them such a standout in larger community aquariums.\u003c\/div\u003e\n\u003ch3\u003eAppearance \u0026amp; Behaviour of Congo Tetra 4cm\u003c\/h3\u003e\n\u003cdiv class=\"mb-1 mt-2 whitespace-pre-line leading-relaxed first:mt-0\" data-sentry-component=\"P\" data-sentry-source-file=\"p.tsx\"\u003eThe \u003cstrong\u003eCongo Tetra 4cm\u003c\/strong\u003e has:\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eA slender, elongated body with a slightly deeper mid‑section\u003c\/li\u003e\n\u003cli\u003eIridescent scales that develop strong rainbow tones as they mature\u003c\/li\u003e\n\u003cli\u003eLong, flowing fins in males, with trailing dorsal and tail fin extensions\u003c\/li\u003e\n\u003cli\u003eCalm, active schooling behaviour – happiest in a group of 6+\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"mb-1 mt-2 whitespace-pre-line leading-relaxed first:mt-0\" data-sentry-component=\"P\" data-sentry-source-file=\"p.tsx\"\u003eWhen kept in a proper group, the \u003cstrong\u003eCongo Tetra 4cm\u003c\/strong\u003e will cruise the mid‑to‑upper water column, flashing colour as they turn in the light and creating a stunning display in planted or blackwater‑style setups.\u003c\/div\u003e\n\u003ch3\u003eTank Requirements for Congo Tetra 4cm\u003c\/h3\u003e\n\u003cdiv class=\"mb-1 mt-2 whitespace-pre-line leading-relaxed first:mt-0\" data-sentry-component=\"P\" data-sentry-source-file=\"p.tsx\"\u003eTo keep the \u003cstrong\u003eCongo Tetra 4cm\u003c\/strong\u003e thriving and showing its best colours:\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank size:\u003c\/strong\u003e A minimum of ~90–120L, with more space preferred for a decent school\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAquascape:\u003c\/strong\u003e Planted tank with open swimming areas and some shaded zones\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e Darker substrates help enhance their iridescence\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater movement:\u003c\/strong\u003e Gentle to moderate flow, not too harsh on their fins\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"mb-1 mt-2 whitespace-pre-line leading-relaxed first:mt-0\" data-sentry-component=\"P\" data-sentry-source-file=\"p.tsx\"\u003eWater parameters (general guide):\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eTemperature: around 24–28°C\u003c\/li\u003e\n\u003cli\u003epH: roughly 6.0–7.5, stable and well‑maintained\u003c\/li\u003e\n\u003cli\u003eClean, well‑filtered water with regular partial water changes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"mb-1 mt-2 whitespace-pre-line leading-relaxed first:mt-0\" data-sentry-component=\"P\" data-sentry-source-file=\"p.tsx\"\u003eGood lighting over plants and darker backgrounds will help the \u003cstrong\u003eCongo Tetra 4cm\u003c\/strong\u003e develop richer colour and a more metallic sheen as it matures.\u003c\/div\u003e\n\u003ch3\u003eTank Mates for Congo Tetra 4cm\u003c\/h3\u003e\n\u003cdiv class=\"mb-1 mt-2 whitespace-pre-line leading-relaxed first:mt-0\" data-sentry-component=\"P\" data-sentry-source-file=\"p.tsx\"\u003eThe \u003cstrong\u003eCongo Tetra 4cm\u003c\/strong\u003e is generally peaceful and well suited to calm community tanks:\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eGreat with other peaceful tetras, rasboras, rainbowfish of similar size, and gentle cichlids\u003c\/li\u003e\n\u003cli\u003eCompatible with Corydoras, smaller plecos and other non‑aggressive bottom dwellers\u003c\/li\u003e\n\u003cli\u003eAvoid fin‑nippers and very boisterous species that may damage their flowing fins\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"mb-1 mt-2 whitespace-pre-line leading-relaxed first:mt-0\" data-sentry-component=\"P\" data-sentry-source-file=\"p.tsx\"\u003eBecause they are schooling fish, always keep \u003cstrong\u003eCongo Tetra 4cm\u003c\/strong\u003e in a group – more individuals will mean less stress, better colour and more natural behaviour.\u003c\/div\u003e\n\u003ch3\u003eFeeding the Congo Tetra 4cm\u003c\/h3\u003e\n\u003cdiv class=\"mb-1 mt-2 whitespace-pre-line leading-relaxed first:mt-0\" data-sentry-component=\"P\" data-sentry-source-file=\"p.tsx\"\u003eThe \u003cstrong\u003eCongo Tetra 4cm\u003c\/strong\u003e is not fussy, but benefits from a varied, high‑quality diet:\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eQuality tropical flakes and micro pellets as a staple\u003c\/li\u003e\n\u003cli\u003eFrozen and live foods such as brine shrimp, daphnia and bloodworm to enhance colour\u003c\/li\u003e\n\u003cli\u003eOccasional treats like insect‑based foods to mimic their natural diet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"mb-1 mt-2 whitespace-pre-line leading-relaxed first:mt-0\" data-sentry-component=\"P\" data-sentry-source-file=\"p.tsx\"\u003eFeeding small amounts 1–2 times per day will keep your \u003cstrong\u003eCongo Tetra 4cm\u003c\/strong\u003e active, healthy and brightly coloured.\u003c\/div\u003e\n\u003ch3\u003ePerfect Centrepiece Schooling Fish\u003c\/h3\u003e\n\u003cdiv class=\"mb-1 mt-2 whitespace-pre-line leading-relaxed first:mt-0\" data-sentry-component=\"P\" data-sentry-source-file=\"p.tsx\"\u003eFor aquarists wanting a showy, active school in a larger community tank, the \u003cstrong\u003eCongo Tetra 4cm\u003c\/strong\u003e is an excellent choice:\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eAdds constant movement and shimmer to the mid‑water\u003c\/li\u003e\n\u003cli\u003ePairs beautifully with planted and blackwater‑inspired aquariums\u003c\/li\u003e\n\u003cli\u003ePeaceful nature makes them easy to combine with other community species\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"mb-1 mt-2 whitespace-pre-line leading-relaxed first:mt-0\" data-sentry-component=\"P\" data-sentry-source-file=\"p.tsx\"\u003eGiven time, good food and stable water, a group of \u003cstrong\u003eCongo Tetra 4cm\u003c\/strong\u003e will mature into a truly eye‑catching display.\u003c\/div\u003e","brand":"Aquarium Haven","offers":[{"title":"Default Title","offer_id":43689840672856,"sku":"TETRA-CONGT4","price":12.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/0152\/3800\/files\/Congo-Tetra.webp?v=1769236409","url":"https:\/\/aquariumhaven.com.au\/products\/congo-tetra-4cm","provider":"Aquarium Haven \u0026 Brisbane Discus","version":"1.0","type":"link"}