{"title":"Co2 Bottles \u0026amp; Accessories","description":"","products":[{"product_id":"sera-high-quality-veiligheids-terugslagventiel","title":"Sera High Quality Safety Check Valve","description":"\u003ch2\u003e \u003cspan class=\"content-page-title product-title\" data-mce-fragment=\"1\"\u003eSera High Quality Safety Check Valve\u003c\/span\u003e\n\u003c\/h2\u003e\n\n\u003cdiv class=\"content-page-text page__product__description\"\u003e Contents: 2 pieces\u003c\/div\u003e","brand":"Sera","offers":[{"title":"Default Title","offer_id":44323875160384,"sku":"08833","price":7.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/1073\/4912\/products\/SeraHighQualityVeiligheids-terugslagventiel.png?v=1779312933"},{"product_id":"sera-flore-co2-bellenteller","title":"Sera Flore Co2 Bubble Counter","description":"\u003ch2\u003e \u003cspan class=\"content-page-title product-title\" data-mce-fragment=\"1\"\u003eSera Flore Co2 Bubble Counter\u003c\/span\u003e\n\u003c\/h2\u003e\n\n\u003cp\u003e The sera flore \u003csub\u003eCO2\u003c\/sub\u003e bubble counter allows easy counting of \u003csub\u003eCO2\u003c\/sub\u003e bubbles to check carbon dioxide fertilization.\u003cbr\u003e\u003c\/p\u003e\n\n \u003cp\u003eThe fine nozzle in the bubble counter ensures that the \u003csub\u003eCO2\u003c\/sub\u003e bubbles are released cleanly and the number can be read quickly and accurately. Due to its small size and natural design, the bubble counter can be placed inconspicuously.\u003c\/p\u003e","brand":"Sera","offers":[{"title":"Default Title","offer_id":44323906453824,"sku":"08059","price":9.39,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/1073\/4912\/products\/Sera_Flore_Co2_Bellenteller.png?v=1779312968"},{"product_id":"sera-co2-magneetventiel","title":"Sera Co2 Solenoid Valve","description":"\u003ch2\u003e \u003cspan class=\"content-page-title product-title\" data-mce-fragment=\"1\"\u003eSera Co2 Solenoid Valve\u003c\/span\u003e\n\u003c\/h2\u003e\n\n\u003cp\u003e The sera \u003csub\u003eCO2\u003c\/sub\u003e solenoid valve for night switching in combination with a timer precisely controls the \u003csub\u003eCO2\u003c\/sub\u003e switch-off during the night or at any other time.\u003c\/p\u003e\n\n\u003cp\u003e It is suitable for installation in existing and new pH-controlled \u003csub\u003eCO2\u003c\/sub\u003e fertilization systems.\u003cbr\u003e A \u003csub\u003eCO2\u003c\/sub\u003e pressure regulator must be installed between the sera \u003csub\u003eCO2\u003c\/sub\u003e solenoid valve and a \u003csub\u003eCO2\u003c\/sub\u003e gas cylinder.\u003c\/p\u003e","brand":"Sera","offers":[{"title":"Default Title","offer_id":44323917332800,"sku":"08030","price":102.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/1073\/4912\/products\/SeraCo2-Magneetventiel.png?v=1779312989"},{"product_id":"sera-co2-continuetest","title":"Sera Co2 Continuous Test","description":"\u003ch2 data-mce-fragment=\"1\"\u003e Sera Co2 Continuous Test\u003cbr data-mce-fragment=\"1\"\u003e\n\n\u003c\/h2\u003e\n\n\u003cp data-mce-fragment=\"1\"\u003e CO2 is considered one of the most important nutrients for aquatic plants.\u003cbr data-mce-fragment=\"1\"\u003e A shortage can therefore have enormous consequences.\u003c\/p\u003e\n\n\u003cp data-mce-fragment=\"1\"\u003e The sera CO2 continuous test was developed for permanent monitoring of the CO2 content in water.\u003cbr data-mce-fragment=\"1\"\u003e The test tube can be easily hidden in the aquarium, the correct CO2 content is simply read.\u003c\/p\u003e\n\n\u003cp data-mce-fragment=\"1\"\u003e Sufficient for approx. 90 fillings.\u003c\/p\u003e","brand":"Sera","offers":[{"title":"Default Title","offer_id":44323930243392,"sku":"04320","price":18.09,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/1073\/4912\/products\/SeraCo2-Continuetest.png?v=1779313009"},{"product_id":"sera-co2-indicatorvloeistof","title":"Sera Co2 Indicator Fluid ","description":"\u003ch2 class=\"GooglePreviewTitle Normal WordBreak ellipsis\" data-mce-fragment=\"1\"\u003e Sera Co2 Indicator Fluid\u003cbr data-mce-fragment=\"1\"\u003e\n\n\u003c\/h2\u003e\n\n\u003cp data-mce-fragment=\"1\"\u003e Replacement fluid for the Sera Co2-Continutest.\u003c\/p\u003e","brand":"Sera","offers":[{"title":"Default Title","offer_id":44323934699840,"sku":"04330","price":8.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/1073\/4912\/products\/SeraCo2-Indicatorvloeistof.png?v=1779313027"},{"product_id":"sera-co2-tabs-plus","title":"Sera Co2-Tabs Plus","description":"\u003ch2 class=\"product-title title-font\" data-mce-fragment=\"1\"\u003e Sera Co2-Tabs Plus\u003cbr data-mce-fragment=\"1\"\u003e\n\n\u003c\/h2\u003e\n\n The sera \u003csub data-mce-fragment=\"1\"\u003eCO2\u003c\/sub\u003e -Tabs are simply placed in the corresponding shaft of the \u003csub data-mce-fragment=\"1\"\u003eCO2\u003c\/sub\u003e -diffusion reactor. Each tablet then releases approx. 100 ml (corresponding to 2,500 bubbles) of \u003csub data-mce-fragment=\"1\"\u003eCO2\u003c\/sub\u003e when in contact with the aquarium water.","brand":"Sera","offers":[{"title":"Default Title","offer_id":44323973562688,"sku":"08040","price":6.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/1073\/4912\/products\/SeraCo2-TabsPlus.png?v=1674475384"},{"product_id":"hs-aqua-glazen-u-verbinding","title":"Hs Aqua Glass U-Connection","description":"\u003ch2\u003eHs Aqua Glass U-Connection\u003c\/h2\u003e","brand":"Hs Aqua","offers":[{"title":"10mm","offer_id":46687646875997,"sku":"0026744","price":1.95,"currency_code":"EUR","in_stock":false},{"title":"15 mm","offer_id":46687652413789,"sku":"0026746","price":2.5,"currency_code":"EUR","in_stock":false},{"title":"20mm","offer_id":46687646908765,"sku":"0026748","price":2.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/1073\/4912\/files\/HsAquaGlazenU-Verbinding10.jpg?v=1683807135"},{"product_id":"colombo-co2-set-basic","title":"Colombo Co2 set basic","description":"\u003ch2\u003eComplete starter set for CO2 injection — better plant growth and less algae\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eEverything included to get started immediately — refillable with Colombo CO2 Basic Refill\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e✅ \u003cstrong\u003eLevel: Easy\u003c\/strong\u003e — Complete set, ready for immediate use. No additional equipment needed.\u003c\/p\u003e\n\n\u003cp\u003eThe Colombo CO2 Set Basic is the ideal starter set for CO2 injection in the aquarium. CO2 is the most important growth factor for aquarium plants — with the correct CO2 dosage, plants grow faster, healthier, and algae are suppressed. The complete set contains everything you need to get started immediately.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cstrong\u003e🌱 Product specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eCO2 starter set\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eContent\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eComplete set — ready for immediate use\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eRefill\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eColombo CO2 Basic Refill (12 grams)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eEffect\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eBetter plant growth and less algae\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eColombo\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cstrong\u003e🚚 Delivery \u0026amp; warranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eFast delivery from our store — ready for immediate use\u003c\/li\u003e\n\n\u003cli\u003eShipping Tuesday or Friday → \u003ca href=\"https:\/\/www.aquariumplantenshop.nl\/policies\/shipping-policy\"\u003eRead more about shipping\u003c\/a\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003eDelivery with track \u0026amp; trace, usually within 1–2 business days\u003c\/li\u003e\n\n\u003cli\u003e\u003cstrong\u003eProblem with your order? We will solve it together.\u003c\/strong\u003e\u003c\/li\u003e\n\n\u003cli\u003eFree shipping from €59,-\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cstrong\u003e✂️ Usage tips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse the Colombo CO2 Indicator to monitor the CO2 level in the aquarium. The ideal CO2 level for aquarium plants is between 20–30 mg\/l. Combine with Colombo Flora Grow for complete plant nutrition.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e💡 Tip\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAdd the Colombo CO2 Diffuser 3 in 1 for a clearer CO2 system — check valve, bubble counter, and diffuser in one compact device.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cstrong\u003e❓ Frequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow long does a refill bottle last?\u003c\/strong\u003e\u003cbr\u003eThe Colombo CO2 Basic Refill contains 12 grams of CO2. The duration depends on the aquarium size and the set dosage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs CO2 injection necessary for aquarium plants?\u003c\/strong\u003e\u003cbr\u003eNot mandatory, but highly recommended for faster and healthier plant growth. Without a CO2 system, Colombo Flora Grow Carbo is a good alternative.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cem\u003eDo you have another question? Feel free to contact us — we are happy to help you make the right choice for your aquarium.\u003c\/em\u003e\u003c\/p\u003e","brand":"Colombo","offers":[{"title":"Default Title","offer_id":54355299238237,"sku":"A5010175","price":14.49,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/1073\/4912\/files\/Colombo_Co2_set_basic_Plantenvoeding.webp?v=1730234268"},{"product_id":"colombo-co2-basis-refill","title":"Colombo Co2 basic refill","description":"\u003ch2\u003e12 gram CO2 Refill Bottle — for the Colombo CO2 Basic Set\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eEasy to replace — keep your CO2 system always optimal\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e✅ \u003cstrong\u003eLevel: Easy\u003c\/strong\u003e — Replace empty bottle with a new one. No tools required.\u003c\/p\u003e\n\n\u003cp\u003eThe Colombo CO2 Basic Refill is the 12 gram CO2 refill bottle for the Colombo CO2 Basic Set. Easy to replace as soon as the previous bottle is empty — ensuring your CO2 system always works optimally for healthy plant growth.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cstrong\u003e🌱 Product Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eCO2 refill bottle\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eContent\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e12 grams of CO2\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eCompatible with\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eColombo CO2 Basic Set\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eReplacement\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eEasy — no tools required\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eColombo\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cstrong\u003e🚚 Delivery \u0026amp; Warranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eFast delivery from our store — ready to use immediately\u003c\/li\u003e\n\n\u003cli\u003eShipping Tuesday or Friday → \u003ca href=\"https:\/\/www.aquariumplantenshop.nl\/policies\/shipping-policy\"\u003eRead more about shipping\u003c\/a\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003eDelivery with track \u0026amp; trace, usually within 1–2 business days\u003c\/li\u003e\n\n\u003cli\u003e\u003cstrong\u003eProblem with your order? We will solve it together.\u003c\/strong\u003e\u003c\/li\u003e\n\n\u003cli\u003eFree shipping from €59,-\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cstrong\u003e✂️ Usage Tips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eReplace the bottle as soon as the CO2 dosage decreases or the bottle is empty. Use the Colombo CO2 Indicator to monitor the CO2 value and adjust the dosage. The ideal CO2 value for aquarium plants is between 20–30 mg\/l.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e💡 Tip\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAlways keep a spare refill bottle in stock — this way your CO2 system never stops and your plants continue to grow optimally.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cstrong\u003e❓ Frequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow long does a refill bottle last?\u003c\/strong\u003e\u003cbr\u003eThe duration depends on the aquarium size and the set dosage. Use the Colombo CO2 Indicator to accurately adjust the dosage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this refill also fit other CO2 sets?\u003c\/strong\u003e\u003cbr\u003eThis refill bottle is specifically for the Colombo CO2 Basic Set. For larger systems, the Colombo CO2 Cylinder 1200 grams is available.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cem\u003eDo you have another question? Feel free to contact us — we are happy to help you make the right choice for your aquarium.\u003c\/em\u003e\u003c\/p\u003e","brand":"Colombo","offers":[{"title":"Default Title","offer_id":54355307069789,"sku":"A5010180","price":6.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/1073\/4912\/files\/Colombo_Co2_basis_refill_plantenvoeding.webp?v=1730234243"},{"product_id":"colombo-co2-cilinder-1200-gram","title":"Colombo Co2 Cylinder 1200 grams","description":"\u003ch2\u003eLarge Disposable CO2 Pressure Cylinder — 1200 grams CO2\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eM10 Schrader valve — compatible with Colombo CO2 Profi \u0026amp; Advance Set\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e✅ \u003cstrong\u003eLevel: Intermediate\u003c\/strong\u003e — Connect to CO2 regulator. Check compatibility with your set.\u003c\/p\u003e\u003cp\u003eThe Colombo CO2 Cylinder 1200 grams is a disposable pressure cylinder with an M10 Schrader valve. Suitable for the Colombo CO2 Profi Set or with an adapter ring for the Colombo CO2 Advance Set and other brands. With 1200 grams of CO2, it will last a long time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e💰 Special offer:\u003c\/strong\u003e Trade in your old cylinder and receive a €5,- discount on a new cylinder.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003e🌱 Product Specifications\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCO2 pressure cylinder (disposable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1200 grams CO2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValve\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM10 Schrader valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible with\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eColombo CO2 Profi Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWith adapter ring\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eColombo CO2 Advance Set and other brands\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eColombo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003e🚚 Delivery \u0026amp; Warranty\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFast delivery from our store — ready to use\u003c\/li\u003e\n\u003cli\u003eShipping Tuesday or Friday → \u003ca href=\"https:\/\/www.aquariumplantenshop.nl\/policies\/shipping-policy\"\u003eRead more about shipping\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eDelivery with track \u0026amp; trace, usually within 1–2 working days\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eProblem with your order? We will solve it together.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eFree shipping from €59,-\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003e✂️ Usage Tips\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBefore connecting, check if the cylinder is compatible with your CO2 regulator. Use the Colombo CO2 Indicator to monitor the CO2 level in the aquarium. The ideal CO2 level for aquarium plants is between 20–30 mg\/l.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e💡 Tip\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eReturn your empty cylinder to us and receive a €5,- discount on a new one — good for your wallet and for the environment.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003e❓ Frequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this cylinder fit my CO2 set?\u003c\/strong\u003e\u003cbr\u003eThe cylinder has an M10 Schrader valve and fits directly onto the Colombo CO2 Profi Set. For the Colombo CO2 Advance Set and other brands, an adapter ring is required.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I refill the cylinder?\u003c\/strong\u003e\u003cbr\u003eNo — this is a disposable cylinder. Return the empty cylinder for a €5,- discount on a new one.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cem\u003eDo you have another question? Feel free to contact us — we are happy to help you choose the right product for your aquarium.\u003c\/em\u003e\u003c\/p\u003e","brand":"Colombo","offers":[{"title":"Default Title","offer_id":55782904201565,"sku":"A5010197","price":49.99,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/1073\/4912\/files\/ColomboCo2Cilinder1200gram.jpg?v=1736767124"},{"product_id":"colombo-co2-indicator","title":"Colombo Co2 basic refill","description":"\u003ch2\u003eColombo Co2 basic refill\u003c\/h2\u003e\n\n\u003cp\u003e Colombo Co2 Basic Set refill, pressure bottle with 12 grams of Co2.\u003c\/p\u003e","brand":"Colombo","offers":[{"title":"Default Title","offer_id":58443327865181,"sku":"A5020295","price":17.49,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/1073\/4912\/files\/Colombo_Co2_Indicator.jpg?v=1757514025"},{"product_id":"colombo-co2-diffusor-3-in-1","title":"Colombo Co2 Diffuser 3 in 1","description":"\u003ch2\u003eCheck valve, bubble counter \u0026amp; diffuser in one compact device\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAvailable in Medium \u0026amp; Large — fewer hoses, clearer CO2 system\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e✅ \u003cstrong\u003eLevel: Easy\u003c\/strong\u003e — Place in the CO2 hose and attach in the aquarium. No tools needed.\u003c\/p\u003e\u003cp\u003eWith the Colombo CO2 Diffuser 3 in 1, you have a check valve, bubble counter, and diffuser in one compact device. Fewer hoses, fewer connections — simpler and clearer CO2 system. The bubble counter allows you to easily check and adjust the CO2 dosage.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003e🌱 Product specifications\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-in-1 CO2 diffuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFunctions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCheck valve + bubble counter + diffuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdvantage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFewer hoses and connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMedium and Large\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eColombo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003e🚚 Delivery \u0026amp; warranty\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDelivered quickly from our store — ready to use immediately\u003c\/li\u003e\n\u003cli\u003eShipping Tuesday or Friday → \u003ca href=\"https:\/\/www.aquariumplantenshop.nl\/policies\/shipping-policy\"\u003eRead more about shipping\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eDelivery with track \u0026amp; trace, usually within 1–2 working days\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eProblem with your order? We'll solve it together.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eFree shipping from €59,-\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003e✂️ Usage tips\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eChoose Medium for aquariums up to approx. 200 liters and Large for larger aquariums. Attach the diffuser low in the aquarium for maximum CO2 absorption. Use the Colombo CO2 Indicator to monitor the CO2 value and adjust the dosage via the bubble counter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e💡 Tip\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe 3-in-1 function makes the CO2 system clearer and reduces the risk of leaks at connections — ideal for a tidy aquarium setup.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003e❓ Frequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich size should I choose?\u003c\/strong\u003e\u003cbr\u003eChoose Medium for aquariums up to approx. 200 liters and Large for larger aquariums with higher CO2 requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I use the bubble counter?\u003c\/strong\u003e\u003cbr\u003eCount the number of bubbles per second and adjust the CO2 regulator until the desired CO2 value (20–30 mg\/l) is reached. Use the Colombo CO2 Indicator for precise control.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cem\u003eDo you have another question? Feel free to contact us — we are happy to help you make the right choice for your aquarium.\u003c\/em\u003e\u003c\/p\u003e","brand":"Colombo","offers":[{"title":"Medium","offer_id":62861890748765,"sku":"A5010208","price":15.49,"currency_code":"EUR","in_stock":true},{"title":"Large","offer_id":62861890781533,"sku":"A5010210","price":17.29,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/1073\/4912\/files\/Colombo_Co2_Diffusor_3_in_1_M.jpg?v=1765565197"}],"url":"https:\/\/www.aquariumplantenshop.nl\/en\/collections\/co2-flessen-toebehoren.oembed","provider":"Aquariumplantenshop","version":"1.0","type":"link"}