Sera Oxygen Test O2 Aquarium Test Kits 15ml / 0.5oz

Measure and monitor the oxygen levels in your aquarium with the Sera Oxygen Test Kit. This user-friendly and precise test kit provides accurate results in just a few minutes, ensuring a healthy and balanced aquatic environment for your fish and plants. With a compact 15ml/0.5oz size, it's a must-have for any aquarium enthusiast.