BARLEY STRAW is inexpensive and healthier for your fish and plants than chemicals. Barley straw has been used for centuries in Europe to maintain fish and garden pond water quality. It has been proven environmentally safe and is inexpensive.
Barley straw is more effective and works for longer periods than wheat or other straws. The variety of barley straw does not seem to have any effect on the performance. Hay should never be used as it increases algae growth and it decomposes very rapidly which may cause a deoxygenating of the water. Barley straw will not kill existing algae, it is not a pesticide. Rather it creates a unique pond environment which discourages any unwanted growth while not harming any plant or animal habitants.