Aquarium CO2 Indicator Drop Checker Kit 15ml

Product overview\nMonitor your aquarium CO2 levels with this 15 ml drop checker kit. Four indicator styles let you see color changes to track CO2 concentration for healthy plant growth.\nKey features\n\n15 ml test solution capacity\nFour indicator styles: Musical note, Ball, Water drop, Hook\nColor guide: Blue = low CO2, Green = normal CO2, Yellow = high CO2\nGlass indicator, corrosion resistant\nMonthly replacement of the test solution\n\nWhat’s included\n\n1 x indicator kit\n1 x test solution\