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Product Details
✓ACCURATE 4dkh SOLUTION: Pre-mixed 4dKH reference solution reacts in about one hour to show dissolved CO2 levels at a glance; at 30ppm the indicator turns an easy-to-read green for balanced plant growth and safe fish.
✓READY-TO-USE REFILLABLE SET: Includes 15ml of solution (roughly half a year of use), one glass drop checker and one suction cup, so the kit works out of the box and refills are available when needed.
✓CLEAR BOROSILICATE GLASS: Smooth, crack-resistant glass stays clear for true color reading, upgraded suction cups hold firmly underwater, and the rounded design will not scratch fish or shrimp.
✓COLOR SIGNALS AT A GLANCE: Blue means CO2 is low, green means balanced, yellow means too much; adjust your diffuser or bubble count and keep the water column stable.
✓FOR PLANTED AQUARIUMS: Ideal CO2 test kit for freshwater planted tanks from 5 to 75 gallons, a daily essential for aquascaping beginners and enthusiasts running pressurized or DIY CO2 systems.