Sera O2 (Oxygen) Test Kit disposable co2 cartridge Since the majority of the

Since the majority of the bacteria are internal

Ash (Max):                    9%

Makes cleaning quick and easy

The BREZA Battery Powered Air Pump will help keep your fish alive and healthy each day

Sera O2 (Oxygen) Test Kit disposable co2 cartridge Since the majority of themeasures the oxygen content warns of dangerous lack of oxygen for freshwater aquariums and ponds easy to use for approx. 60 measurements Makes it easy to monitor the oxygen level in freshwater Quick breathing at the water surface is an unmistakable sign for an oxygen deficiency. Unfortunately, it may then already be too late for acting appropriately. The sera O2 Test monitors the actual oxygen level in the water within minutes and allows for acting in