{"product_id":"cardinal-tetra-2-5cm","title":"Cardinal Tetra 2.5cm","description":"\u003cdiv class=\"mb-1 mt-2 whitespace-pre-line leading-relaxed first:mt-0\" data-sentry-component=\"P\" data-sentry-source-file=\"p.tsx\"\u003e\n\u003cstrong\u003eCardinal Tetra 2.5cm\u003c\/strong\u003e is a stunning schooling fish with a full‑length neon blue stripe and deep red body, perfect for planted community aquariums. At around 2.5cm, Cardinal Tetra 2.5cm stay small, look incredible in groups, and are ideal for peaceful community tanks with gentle tank mates and soft, clean water.\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\"\u003eCreate a classic, colourful display in your aquarium with the \u003cstrong\u003eCardinal Tetra 2.5cm\u003c\/strong\u003e. Famous for their bright neon blue stripe and rich red body that runs from nose to tail, cardinals are one of the most striking schooling fish available and look incredible in planted and aquascaped tanks.\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 approximately \u003cstrong\u003e2.5cm\u003c\/strong\u003e, \u003cstrong\u003eCardinal Tetra 2.5cm\u003c\/strong\u003e are small, peaceful fish that really shine when kept in a decent‑sized school.\u003c\/div\u003e\n\u003ch3\u003eKey Features of Cardinal Tetra 2.5cm\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIconic neon blue and deep red colouration\u003c\/li\u003e\n\u003cli\u003ePeaceful schooling fish for community aquariums\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCardinal Tetra 2.5cm\u003c\/strong\u003e stay small and slender\u003c\/li\u003e\n\u003cli\u003eLook best in planted tanks with darker substrates\u003c\/li\u003e\n\u003cli\u003eGreat choice for peaceful community and discus setups\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\"\u003eA group of \u003cstrong\u003eCardinal Tetra 2.5cm\u003c\/strong\u003e moving together instantly becomes a centrepiece in any well‑scaped aquarium.\u003c\/div\u003e\n\u003ch3\u003eTank Requirements for Cardinal Tetra 2.5cm\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 \u003cstrong\u003eCardinal Tetra 2.5cm\u003c\/strong\u003e healthy and showing their best colour:\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eRecommended tank size: from around 60cm (2ft) and up\u003c\/li\u003e\n\u003cli\u003eProvide open mid‑water swimming space with plants around the edges\u003c\/li\u003e\n\u003cli\u003eUse driftwood, plants and leaf litter to create shaded areas\u003c\/li\u003e\n\u003cli\u003eTemperature: roughly 24–28°C\u003c\/li\u003e\n\u003cli\u003epH: about 5.5–7.0 with soft, clean, stable water\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\"\u003eCardinal Tetra 2.5cm appreciate gentle flow, good filtration and regular water changes. Stable conditions help them settle, colour up and live longer.\u003c\/div\u003e\n\u003ch3\u003eIdeal Tank Mates for Cardinal Tetra 2.5cm\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\"\u003e\n\u003cstrong\u003eCardinal Tetra 2.5cm\u003c\/strong\u003e are peaceful and pair well with:\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eOther small, gentle tetras and rasboras\u003c\/li\u003e\n\u003cli\u003eDwarf cichlids and peaceful gourami\u003c\/li\u003e\n\u003cli\u003eCorydoras and small, non‑aggressive bottom dwellers\u003c\/li\u003e\n\u003cli\u003eShrimp and snails in carefully planned setups\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\"\u003eThey should be kept in groups of at least 8–10 \u003cstrong\u003eCardinal Tetra 2.5cm\u003c\/strong\u003e, with larger schools looking even more impressive and helping them feel secure.\u003c\/div\u003e\n\u003ch3\u003eFeeding Cardinal Tetra 2.5cm\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\"\u003eFeeding \u003cstrong\u003eCardinal Tetra 2.5cm\u003c\/strong\u003e is easy:\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eHigh‑quality micro pellets or fine flakes as a staple\u003c\/li\u003e\n\u003cli\u003eSupplement with frozen or live foods like brine shrimp, daphnia and bloodworms\u003c\/li\u003e\n\u003cli\u003eOffer small feeds 1–2 times daily so all fish get a share\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\"\u003eA varied diet helps \u003cstrong\u003eCardinal Tetra 2.5cm\u003c\/strong\u003e maintain strong colour, good condition and natural activity.\u003c\/div\u003e\n\u003ch3\u003eAquascaping Tips for Cardinal Tetra 2.5cm\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\"\u003eCardinal Tetra 2.5cm look best in:\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eHeavily planted tanks with open swimming lanes\u003c\/li\u003e\n\u003cli\u003eDarker substrates that make their colours pop\u003c\/li\u003e\n\u003cli\u003eLayouts with driftwood, roots and shaded areas for a “blackwater” feel\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\"\u003eDesign your scape so a school of \u003cstrong\u003eCardinal Tetra 2.5cm\u003c\/strong\u003e can cruise across the front and mid‑water, framed by plants and hardscape for maximum visual impact.\u003c\/div\u003e","brand":"Aquarium Haven","offers":[{"title":"Default Title","offer_id":43689841786968,"sku":"TETRA-CT2\/2.5","price":6.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/0152\/3800\/files\/Cardinal-Tetra.webp?v=1769236458","url":"https:\/\/aquariumhaven.com.au\/products\/cardinal-tetra-2-5cm","provider":"Aquarium Haven \u0026 Brisbane Discus","version":"1.0","type":"link"}