- Convenient hidden glass slot allows for easy opening and refilling with liquid, ensuring hassle-free maintenance. - Equipped with a CO2 carbon dioxide monitor glass drop tester that includes 15 ml of monitoring fluid for accurate readings. - Color-coded liquid indicators provide clear visual feedback on CO2 concentrations: - Blue indicates low CO2 levels, signaling the need for increased carbon dioxide. - Green represents normal CO2 levels, ideal for aquatic health. - Yellow warns of high CO2 concentrations, which can lead to oxygen deficiency and threaten the well-being of fish and shrimp. - This product is essential for aquarium enthusiasts seeking to maintain a healthy aquatic environment, ensuring optimal conditions for fish and shrimp. - Suitable for freshwater and saltwater aquariums, making it versatile for various setups. - Ideal for use during tank maintenance, water changes, or when introducing new fish, providing immediate feedback on CO2 levels to prevent potential hazards. - Compact design ensures it fits seamlessly into your aquarium setup without taking up unnecessary space. - Made from durable materials for long-lasting performance, ensuring reliable monitoring over time.