{"title":"CO2 fertilization","description":"\u003cp style=\"margin-bottom: .5rem;\"\u003e\u003cstrong\u003eCO₂ fertilization\u003c\/strong\u003e accelerates photosynthesis, plant growth and colors, reducing algae thanks to stronger plants. You can find \u003cem\u003ecomplete kits\u003c\/em\u003e, refillable\/disposable cylinders, \u003cem\u003eregulators\u003c\/em\u003e, \u003cem\u003esolenoid valves\u003c\/em\u003e, \u003cem\u003ediffusers\/atomizers\u003c\/em\u003e, \u003cem\u003ebubble counters\u003c\/em\u003e, \u003cem\u003edrop checkers\u003c\/em\u003e, and accessories.\u003c\/p\u003e\n\u003cdetails style=\"margin: .5rem 0 1rem;\"\u003e\n\u003csummary style=\"display: inline-block; cursor: pointer; padding: .55rem 0; color: #006bb3; font-weight: 600;\"\u003eRead more\u003c\/summary\u003e\n\u003cdiv style=\"margin-top: .75rem; line-height: 1.6;\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eTypical setups:\u003c\/strong\u003e \u003cem\u003erefillable cylinder\u003c\/em\u003e (economical long-term management), \u003cem\u003edisposable\u003c\/em\u003e (practical for small tanks), \u003cem\u003ebio-CO₂\u003c\/em\u003e (entry-level). Key components: \u003cem\u003epressure regulator\u003c\/em\u003e (dual gauge is better), \u003cem\u003esolenoid valve\u003c\/em\u003e for turning off at night, \u003cem\u003ebubble counter\u003c\/em\u003e, \u003cem\u003echeck valve\u003c\/em\u003e, \u003cem\u003eCO₂ tubing\u003c\/em\u003e, and \u003cem\u003ediffuser\u003c\/em\u003e (in-tank or \u003cem\u003einline\u003c\/em\u003e on the filter).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTarget \u0026amp; adjustment:\u003c\/strong\u003e aim for \u003cem\u003e20–30 mg\/L\u003c\/em\u003e of CO₂ with a \u003cem\u003edrop checker\u003c\/em\u003e at \u003cstrong\u003e4 dKH\u003c\/strong\u003e solution (green\/lime green when lights are on). Start with a few bubbles\/minute and gradually increase until you see full growth without stressing the fish.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGood practices:\u003c\/strong\u003e turn on the CO₂ \u003cem\u003e1–2 hours before\u003c\/em\u003e the lights and turn it off with a \u003cem\u003esolenoid valve\u003c\/em\u003e at the end of the photoperiod; limit surface turbulence and orient the filter outlet to properly diffuse the CO₂. Maintain \u003cem\u003eKH 3–6\u003c\/em\u003e for stable pH.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSafety \u0026amp; maintenance:\u003c\/strong\u003e always use a \u003cem\u003echeck valve\u003c\/em\u003e, check for leaks (foam test), do not expose the cylinder to direct heat; periodically replace gaskets and clean the diffuser.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAlternative\/integration:\u003c\/strong\u003e \"\u003cem\u003eliquid carbon\u003c\/em\u003e\" can supplement but not replace gaseous CO₂ in demanding tanks; check compatibility with \u003cem\u003eshrimp\u003c\/em\u003e and delicate plants.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003c\/details\u003e\n\u003cp style=\"margin-top: 10px; font-style: italic;\"\u003eTip: Start with low CO2 delivery, observe fish and CO2 Test, and increase in steps. With stable CO₂ and consistent fertilization, plants will outcompete algae.\u003c\/p\u003e\n\u003cp style=\"font-size: .9rem; color: #555;\"\u003e— Advice from the Hobby Pesca \u0026amp; Acquari Team\u003c\/p\u003e","products":[{"product_id":"chihiros-nano-co2-diffuser-s","title":"Chihiros Nano CO2 diffuser S","description":"\u003cdiv id=\"testo_dsc_articolo\"\u003e\n\n\u003cp\u003eThe Chihiros CO2 diffuser is suitable for aquariums from 50 to over 200 liters. The special ceramic membrane ensures very fine atomization of CO2 bubbles. The small CO2 bubbles are easily carried by the water flow and are very efficiently distributed throughout the aquarium.\u003c\/p\u003e\n\n\u003cp\u003eThe diffusers are made of sturdy acrylic and are easy to clean.\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003eLength 82 mm\u003c\/li\u003e\n\n\u003cli\u003eWidth 22mm\u003c\/li\u003e\n\n\u003cli\u003eMembrane diameter 13.7 mm\u003c\/li\u003e\n\n\u003cli\u003eDiffuser body height 20 mm\u003c\/li\u003e\n\n\u003cli\u003eSuitable for aquariums up to 100 liters\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003ciframe title=\"Chihiros Nano Co2 diffuser\" src=\"https:\/\/www.youtube.com\/embed\/uHwChFTcB0Y\" height=\"494\" width=\"833\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\n\n\u003c\/div\u003e","brand":"Chihiros","offers":[{"title":"Default Title","offer_id":46049255063715,"sku":"325-001","price":11.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/3472\/5027\/files\/chihiros_nano_co2_diffuser_e62e7efc-905d-44c8-974a-04e00a0fa2ac.jpg?v=1757366313"},{"product_id":"chihiros-nano-co2-diffuser-m","title":"Chihiros Nano CO2 diffuser M","description":"\u003cdiv id=\"testo_dsc_articolo\"\u003e\n\n\u003cp\u003eThe Chihiros CO2 diffuser is suitable for aquariums from 50 to over 200 l. The special ceramic membrane ensures very fine atomization of CO2 bubbles. The small CO2 bubbles are easily carried by the water flow and are very efficiently distributed throughout the aquarium.\u003c\/p\u003e\n\n\u003cp\u003eThe diffusers are made of robust acrylic and are easy to clean.\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003eLength 78 mm\u003c\/li\u003e\n\n\u003cli\u003eWidth 29 mm\u003c\/li\u003e\n\n\u003cli\u003eMembrane diameter 17.4 mm\u003c\/li\u003e\n\n\u003cli\u003eDiffuser body height 22 mm\u003c\/li\u003e\n\n\u003cli\u003eSuitable for aquariums measuring 100 - 200 l\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003ciframe title=\"Chihiros Nano Co2 diffuser\" src=\"https:\/\/www.youtube.com\/embed\/uHwChFTcB0Y\" height=\"494\" width=\"833\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\n\n\u003c\/div\u003e","brand":"Chihiros","offers":[{"title":"Default Title","offer_id":46049255096483,"sku":"325-002","price":12.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/3472\/5027\/files\/chihiros_nano_co2_diffuser.jpg?v=1757366316"},{"product_id":"chihiros-nano-co2-diffuser-m-copy","title":"Chihiros Nano CO2 diffuser L","description":"\u003cdiv id=\"testo_dsc_articolo\"\u003e\n\n\u003cp\u003eThe Chihiros CO2 diffuser is suitable for aquariums from 50 to over 200 liters. The special ceramic membrane ensures a very fine atomization of CO2 bubbles. The small CO2 bubbles are easily carried by the water flow and are distributed very efficiently throughout the aquarium.\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003eThe diffusers are made of sturdy acrylic and are easy to clean.\u003c\/li\u003e\n\n\u003cli\u003eLength 81 mm\u003c\/li\u003e\n\n\u003cli\u003eWidth 30 mm\u003c\/li\u003e\n\n\u003cli\u003eMembrane diameter 23 mm\u003c\/li\u003e\n\n\u003cli\u003eDiffuser body height 25 mm\u003c\/li\u003e\n\n\u003cli\u003e\u003cspan\u003eSuitable for aquariums larger than 200 l\u003c\/span\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003ciframe title=\"Chihiros Nano Co2 diffuser\" src=\"https:\/\/www.youtube.com\/embed\/uHwChFTcB0Y\" height=\"494\" width=\"833\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\n\n\u003c\/div\u003e","brand":"Chihiros","offers":[{"title":"Default Title","offer_id":46049255162019,"sku":"325-003","price":12.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/3472\/5027\/files\/chihiros_nano_co2_diffuser_03496a48-8d86-4d8f-b508-c6126899e881.jpg?v=1757366319"},{"product_id":"chihiros-co2-diffuser-tiny","title":"Chihiros Co2 diffuser Tiny","description":"\u003cp\u003eThe Chihiros CO2 diffuser is suitable for aquariums from 50 to over 200 liters. The special ceramic membrane ensures very fine atomization of CO2 bubbles. The small CO2 bubbles are easily carried by the water flow and are very efficiently distributed throughout the aquarium.\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eThe diffusers are made of sturdy acrylic and are easy to clean.\u003c\/li\u003e\n\n\u003cli\u003eLength 100 mm\u003c\/li\u003e\n\n\u003cli\u003eWidth 22mm\u003c\/li\u003e\n\n\u003cli\u003eMembrane diameter 11 mm\u003c\/li\u003e\n\n\u003cli\u003eMembrane length 10 mm\u003c\/li\u003e\n\n\u003cli\u003eSuitable for aquariums up to 50 l\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"Chihiros","offers":[{"title":"Default Title","offer_id":46049255194787,"sku":"325-004","price":11.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/3472\/5027\/files\/chihiros_co2_diffuser_tiny_3a191b38-2072-407f-b669-81e419fe80a3.jpg?v=1757366321"},{"product_id":"chihiros-bubble-counter","title":"Chihiros Bubble counter","description":"\u003cp\u003eBubble counter that easily monitors the amount of CO2 added to your tank\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe valve prevents the bubble counter from running dry\u003c\/p\u003e\n\u003cp\u003eMade of sturdy metal\u003c\/p\u003e\n\u003cp\u003eEasy to fill and attach\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/_naxv73Pxcc?si=WSdUxdaTKK9JZPDr\" height=\"315\" width=\"560\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Chihiros","offers":[{"title":"Default Title","offer_id":46049255850147,"sku":"350-3003","price":11.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/3472\/5027\/files\/chihiros_bubble_counter_2ae55bda-dfd1-4c27-82db-0c2b6ab72caf.jpg?v=1757366398"},{"product_id":"chihiros-co2-regulator-mate-regolatore-di-pressione-con-contabolle-ed-elettrovalvola","title":"Chihiros CO2 Regulator Mate - Pressure Regulator with Bubble Counter and Solenoid Valve","description":"\u003cp\u003e\u003cstrong\u003eThe Chihiros CO2 Regulator Mate is a high-precision pressure regulator with integrated bubble counter and solenoid valve. Compatible with refillable CO2 cylinders with standard W21.8 x 1\/14 connection. Practical and precise, ideal for CO2 systems in planted aquariums.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdetails\u003e\n\u003csummary\u003e📖 Read more\u003c\/summary\u003e\n\u003ch3\u003eMain features\u003c\/h3\u003e\n\n\u003cul\u003e\n\n\u003cli\u003eHigh-precision pressure regulator\u003c\/li\u003e\n\n\u003cli\u003eIntegrated bubble counter to monitor CO2 flow\u003c\/li\u003e\n\n\u003cli\u003eBuilt-in solenoid valve for automatic programming\u003c\/li\u003e\n\n\u003cli\u003eCompatible with refillable CO2 cylinders with standard W21.8 x 1\/14 connection\u003c\/li\u003e\n\n\u003cli\u003eSpecial syringe inlet to easily fill the bubble counter with water\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003c\/details\u003e\n\u003cp\u003e💡 \u003cstrong\u003eExpert tip:\u003c\/strong\u003e The integrated solenoid valve is crucial: connect it to your light timer to automatically stop CO2 delivery during the night, when plants do not photosynthesize and pH could drop dangerously. The integrated bubble counter allows you to precisely calibrate the flow — for most planted aquariums, start with 1-2 bubbles per second and adjust based on pH and KH values. Consult us for more information or help.\u003c\/p\u003e","brand":"Chihiros","offers":[{"title":"Default Title","offer_id":47554941124771,"sku":"0070","price":97.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/3472\/5027\/files\/Schermata2026-04-11alle16.51.38.png?v=1775919235"}],"url":"https:\/\/hobbypescaeacquari.live\/en\/collections\/fertilizzazione-con-co2.oembed","provider":"HobbyPesca","version":"1.0","type":"link"}