Use JBL Oxygen Test O₂ (New Formula) to quickly test and determine the oxygen content in freshwater or marine water aquariums can also be used on ponds.Determines the ideal oxygen content in freshwater and seawaterQuick test for monitoring the aeration: fill glass vial with sample water, add reagent..
Oxygen is vital to the well being and overall condition of fish plants and filter bacteria. Water contains far less oxygen than air and at times it can become limiting. It is important to check oxygen levels from time to time particularly at warmer times of the year. The only way to check the oxygen..