{"product_id":"aquarium-co2-indicator-solution-15ml-fish-tank-long-term-monitor-co2-test-ph-liquid-foraquatic-plants-used-with-drop-checker","title":"Aquarium CO₂ Drop Checker with Indicator Solution","description":"\u003cp\u003eObserve a planted aquarium's CO₂ trend with a selected glass drop checker and the listed indicator solution.\u003c\/p\u003e\u003ch2\u003eChoose a visible CO₂ trend indicator\u003c\/h2\u003e\u003cul style=\"list-style:none; padding-left:0; margin:0;\"\u003e\n\u003cli style=\"list-style:none; margin:0 0 0.6em;\"\u003e✅ \u003cstrong\u003eRead a colour change\u003c\/strong\u003e – The indicator provides a visible colour reference for the CO₂ trend.\u003c\/li\u003e\n\u003cli style=\"list-style:none; margin:0 0 0.6em;\"\u003e✅ \u003cstrong\u003eObserve without an electronic display\u003c\/strong\u003e – The glass checker uses the solution's colour rather than a battery-powered screen.\u003c\/li\u003e\n\u003cli style=\"list-style:none; margin:0 0 0.6em;\"\u003e✅ \u003cstrong\u003eChoose a checker shape\u003c\/strong\u003e – Selectable styles let you choose the glass arrangement for your aquarium.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eContents listed: one selected CO₂ monitor\/drop checker and one indicator solution. Check the selected option's glass style and solution quantity.\u003c\/p\u003e\u003cp\u003eUse the solution inside the checker according to its instructions. The listed colour guide is blue for lower, green for normal and yellow for higher CO₂; it is a qualitative guide, not a verified numerical concentration reading.\u003c\/p\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sda2e14e060574d018667d1c6836070729.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S31ab3a798297463b8c35eb33df2d16eeu.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S513dd9e5dad24ada8a0becfc233a8661j.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S607d5218d86e49fe90cd94705eac5ab5o.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S125b270cb9de495e9c6bbf20413ad429H.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S07419effbdb4482dbce4c32a6b8e89d1L.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sd2d077b586d942bdaa25f7a5917a8ef2H.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S13a4d25bbe53496692cec675e3359bccw.jpg\"\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/S52e19c552dda44b5bca2f48862cabc2eA.jpg\"\u003e\u003cp\u003eCheck the selected checker style and follow its indicator-solution instructions. Explore more \u003ca href=\"\/collections\/aquarium-accessories\"\u003eaquarium accessories\u003c\/a\u003e.\u003c\/p\u003e","brand":"Spy-shop.com","offers":[{"title":"A","offer_id":63855355330890,"sku":"1005009567621751-A","price":15.76,"currency_code":"EUR","in_stock":true},{"title":"D","offer_id":63855355363658,"sku":"1005009567621751-D","price":18.13,"currency_code":"EUR","in_stock":true},{"title":"E","offer_id":63855355396426,"sku":"1005009567621751-E","price":18.13,"currency_code":"EUR","in_stock":true},{"title":"C","offer_id":63855355429194,"sku":"1005009567621751-C","price":18.13,"currency_code":"EUR","in_stock":true},{"title":"B","offer_id":63855355461962,"sku":"1005009567621751-B","price":18.13,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0764\/5980\/2954\/files\/Sec6bf32e4d564528b1b062f4c2e64caeN.webp?v=1791477922","url":"https:\/\/spy-shop.com\/products\/aquarium-co2-indicator-solution-15ml-fish-tank-long-term-monitor-co2-test-ph-liquid-foraquatic-plants-used-with-drop-checker","provider":"Spy-shop.com","version":"1.0","type":"link"}