As you can see from the flowchart diagram below, when water is low in dissolved oxygen (anoxic), sediments release phosphate into the water column. This leads to the growth of algae. As shown in the algal pond stages, the presence of residual sodium carbonate acts as a catalyst for the algae to bloom by providing dissolved carbon dioxide for enhanced photosynthesis in the presence of nutrients. Before you start making the stages of an algal pond, you should understand that various other nutrient sources can also play an important role in affecting algal bloom formation, including iron, silica, or carbon. You can use EdrawMax Online to create a similar-looking algal pond stages diagram for your academic purpose. The dashboard of EdrawMax Online is user-friendly, and even a non-graphic designer can access the free tools and create a flowchart diagram as required.