The crossword solution for the term 'Tiny Pond Plant' is ALGA, which is a four-letter word. ALGA is a type of aquatic plant that is found in both freshwater and saltwater environments. It is typically very small and can range in size from microscopic to several meters in length. Algae are an important part of the food chain, providing food for many aquatic animals, and they also help to keep water clean by absorbing nutrients and pollutants.