{"product_id":"hieryan-circular-fish-tank-filter-hang-on-biochemical-sponge-filter-for-3-54-5-35-in-circular-tanks","title":"HIERYAN Circular Fish Tank Filter – Hang-On Biochemical Sponge Filter for 3.54–5.35 in Circular Tanks","description":"\u003cdiv class=\"seo-product-description\"\u003e\n  \u003ch2\u003eOverview\u003c\/h2\u003e\n  \u003cp\u003eThe HIERYAN Circular Fish Tank Filter is designed for compact circular aquariums. Its curved design fits snugly against the inner wall of tanks with diameters between 3.54 and 5.35 inches, delivering a tidy, space‑efficient filtration solution without crowding the aesthetics of your setup. The lightweight construction makes installation straightforward, and the unit runs quietly to maintain a tranquil viewing environment, whether you’re admiring colors during the day or enjoying a peaceful night by the tank.\u003c\/p\u003e\n  \u003cp\u003eIntended for small habitats, this hang‑on filter balances performance and ease of use. The easy hookup means you can position it quickly without tools, while its compact footprint helps preserve viewing space and tank depth for your décor and inhabitants.\u003c\/p\u003e\n\n  \u003ch3\u003eThree‑in‑one performance\u003c\/h3\u003e\n  \u003cp\u003eThe filter combines three essential functions in a single compact package: nitrifying bacteria cultivation, oxygenation, and mechanical filtration. This integrated approach supports water quality and helps create a stable micro‑environment for fish and aquatic plants. It can also reduce the frequency of water exchanges, making routine maintenance more manageable.\u003c\/p\u003e\n  \u003cp\u003eIn practice, you may notice clearer water and steadier color in your aquarium as the bio‑media works alongside aeration to move dissolved oxygen through the water column. The design emphasizes gentle flow and reliable filtration for small, lively fish.\u003c\/p\u003e\n\n  \u003ch3\u003eMedia, customization, and flexibility\u003c\/h3\u003e\n  \u003cp\u003eThe included biochemical sponge element acts as a bio‑media that fosters beneficial bacteria. You can mix in other compatible media to tailor filtration for your tank's water quality and inhabitants. This flexibility is helpful if you’re experimenting with different plant profiles or fish groups.\u003c\/p\u003e\n  \u003cp\u003eBy offering customizable media combinations, the unit supports a range of small tank setups, from plant‑driven nano aquariums to mixed communities, without needing a larger filtration system.\u003c\/p\u003e\n\n  \u003ch3\u003eAdjustable flow and quiet operation\u003c\/h3\u003e\n  \u003cp\u003eA simple dial lets you adjust the water flow to match fish activity and tank needs. Lower settings preserve gentle movement and reduce currents for shy species, while higher settings increase turnover to improve oxygen diffusion and overall water dynamics — all without a noisy profile.\u003c\/p\u003e\n\n  \u003ch3\u003eWhat to expect in daily use\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eEasy installation on circular tanks from 3.54 to 5.35 inches in diameter\u003c\/li\u003e\n    \u003cli\u003eQuiet performance ideal for bedrooms and living spaces\u003c\/li\u003e\n    \u003cli\u003eSuitable for tanks under 10 gallons, with flexible media options\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n  \u003cp\u003eRinse the sponge media gently with tank water during routine maintenance to preserve beneficial bacteria. You can add or replace media as needed to suit your tank's water quality and inhabitants. The unit is designed for simple care and long‑lasting use.\u003c\/p\u003e\n\n  \u003ch3\u003ePutting it in your setup\u003c\/h3\u003e\n  \u003cp\u003eWhether you keep small community fish or plant‑forward aquariums, this filter helps maintain clarity and stable conditions. It pairs well with compatible heaters, lighting, and decorative elements to highlight a compact circular tank as a focal point in your space.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the HIERYAN Circular Fish Tank Filter easy to install in a small circular tank?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It hangs on securely and supports tanks from 3.54 to 5.35 inches in diameter with an adjustable flow rate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What maintenance does the HIERYAN filter require?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It uses a biochemical sponge element and optional media; rinse gently with tank water to preserve beneficial bacteria and reduce replacements.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HIERYAN","offers":[{"title":"Default Title","offer_id":57207860003193,"sku":"B0D1RCJDXZ","price":22.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/8934\/1049\/files\/hieryan-circular-tank-filter-curved-design.jpg?v=1777875549","url":"https:\/\/petlyvox.com\/products\/hieryan-circular-fish-tank-filter-hang-on-biochemical-sponge-filter-for-3-54-5-35-in-circular-tanks","provider":"petlyvox","version":"1.0","type":"link"}