Barley Straw Extract Aquarium Strength 500ml

A natural algae inhibiter.  Barley Straw Extract helps to condition water and naturally control the unsightly green matter.  Regular use will ensure that your aquarium has the microbes and enzymes required to prevent green matter building up and will help keep your aquarium water clean. When used strictly as directed, it is harmless to filter systems, and can be used without harmful effects to fish, plants and other aquatic life.

Directions:  Add 5ml for each 60 litres of water.  To prevent green matter recurring, repeat dose every 2 weeks.