Pond growths refer to the presence of ALGAE in a pond. ALGAE are a type of plant-like organism that can be found in both freshwater and saltwater environments. They are typically green in color and can range in size from microscopic to several feet in length. ALGAE are an important part of the food chain, providing food for fish, birds, and other aquatic life. They also help to keep the water clean by absorbing nutrients and producing oxygen.