King British Algae Guard

King British Algae Guard is a naturally derived, eco-friendly product for the control of Algae and Blanket weed in aquariums. It is produced from organically-grown Barley 204.When algae takes hold in an aquarium, not only is it unsightly, but it can also be lethal to fish as it drastically lowers oxygen levels. Algae can also restrict the growth of beneficial oxygenating plants, thus disturbing the natural balance of the aquarium.