{"product_id":"ruby-tetra","title":"Ruby Tetra","description":"\u003cp data-start=\"0\" data-end=\"35\" class=\"PDq2pG_selectionAnchorContainer\"\u003ename: ruby tetra (axelrodia riesei)\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"37\" data-end=\"59\"\u003emax size: up to 1 inch\u003c\/p\u003e\n\u003cp data-start=\"61\" data-end=\"122\"\u003ewater parameters: pH 4.5-6.8, temperature 75-82°F, soft water\u003c\/p\u003e\n\u003cp data-start=\"124\" data-end=\"282\"\u003ediet: omnivorous – thrives on high quality micro pellets, crushed flakes, and live or frozen foods such as baby brine shrimp, daphnia, cyclops, and microworms\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"369\"\u003etemperament: peaceful and schooling; best kept in groups of at least 8-10 individuals\u003c\/p\u003e\n\u003cp data-start=\"371\" data-end=\"534\"\u003etank setup: heavily planted aquarium with driftwood, leaf litter, subdued lighting, and gentle water flow. A dark substrate helps enhance their vibrant coloration.\u003c\/p\u003e\n\u003cp data-start=\"536\" data-end=\"692\"\u003ecompatibility: excellent for peaceful nano community tanks with other small fish such as ember tetras, chili rasboras, pygmy corydoras, and small pencilfish\u003c\/p\u003e\n\u003cp data-start=\"694\" data-end=\"841\"\u003ebehavior: active mid-water swimmer that displays tighter schooling and more intense coloration when kept in larger groups and blackwater conditions\u003c\/p\u003e\n\u003cp data-start=\"843\" data-end=\"1045\" data-is-last-node=\"\" data-is-only-node=\"\"\u003efun fact: despite their tiny size, ruby tetras develop an intense ruby-red coloration in soft, acidic water, making them one of the brightest naturally colored nano fish available in the aquarium hobby.\u003c\/p\u003e","brand":"Mastah Betta","offers":[{"title":"0.5\"","offer_id":53463776690476,"sku":null,"price":4.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/8947\/4092\/files\/ChatGPTImageJul24_2026_03_57_56AM.png?v=1784901499","url":"https:\/\/mastahbetta.com\/products\/ruby-tetra","provider":"Mastah Betta","version":"1.0","type":"link"}