When water is stagnant, has a high temperature or a high concentration of Nitrates and Phosphates, an algae bloom might occur, which can cause several problems. Blue-green algae growth, also known as cyanobacteria, can cause a foul odour to the water, a layer of scum on the surface and even pose a health risk. Green algae may colour the water green, look unclear and plants can die. Therefore an algae problem is often unwanted and algae control is desired.
1 An alcoholic beverage made by distillation rather than by fermentation. 2  A rich broth resulting from the prolonged cooking of meat or vegetables, especially greens. 3  Also called pot liquor. 4  An aqueous solution of a nonvolatile substance. 5  A solution, emulsion, or suspension for industrial use.
Alcoholic beverage. An alcoholic beverage is a drink that contains ethanol (commonly called alcohol). Alcoholic beverages are divided into three general classes: beers, wines, and spirits. Alcoholic beverages are consumed in almost every nation, and most nations have laws that regulate their production, sale, and consumption. In particular, such laws specify the minimum age at which a person may legally buy or drink alcoholic beverages.