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.
An alcoholic beverage is a drink that contains ethanol, an anesthetic that has been used as a psychoactive drug for several millennia.Ethanol is the oldest recreational drug still used by humans. Ethanol can cause alcohol intoxication when consumed.istilled (concentrated) alcoholic beverages, often called  hard liquor , roughly eight times more alcoholic than beer. An alcoholic beverage is a drink that contains ethanol, an anesthetic that has been used as a psychoactive drug for several millennia. Ethanol is the oldest recreational drug still used by humans.