Sufferers with algae problems have been benefitting from our extract of decomposed barley straw, excalibar, for nearly 10 years. Not content that it is effective against most species of algae, we have now made it 50% stronger ! If you are wondering which product to buy, consider which is going to be best value for money - the 'me-too' product, or excalibar made by the originators of the barley straw extract technology. excalibar complements our nutrient-scavenging technology, swarm, and can be used together, expecially if aquatic weeds are also a problem - just call to speak to an expert
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