{"product_id":"co2-drop-checker","title":"Co2 Drop Checker","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eAn \u003cb data-path-to-node=\"1\" data-index-in-node=\"3\"\u003eAquarium Glass CO2 Drop Checker Set\u003c\/b\u003e is an essential monitoring tool for planted aquariums, providing a real-time visual assessment of dissolved carbon dioxide levels. Crafted from hand-blown laboratory-grade glass, the drop checker utilizes an internal air-gap chamber to trap outgassed CO2 from the water column, reacting with a pre-mixed 4dKH bromothymol blue indicator solution without mixing with the aquarium water. The solution shifts color dynamically to indicate CO2 concentration: blue signals under-saturation (insufficient CO2 for plant growth), green indicates optimal saturation (~30 ppm CO2 for vibrant flora and fish safety), and yellow warns of dangerous over-saturation. Compact and elegant, it mounts discreetly inside the tank using a suction cup to deliver clear, continuous, and reliable water chemistry feedback.\u003c\/p\u003e","brand":"Williamstown Aquarium","offers":[{"title":"Default Title","offer_id":56580860576049,"sku":null,"price":22.95,"currency_code":"AUD","in_stock":true}],"url":"https:\/\/www.williamstownaquarium.com.au\/products\/co2-drop-checker","provider":"Williamstown Aquarium","version":"1.0","type":"link"}