Tsiteeri:
Green encrustations: Two types: ‘fuzzy” and beard. The fuzzy algae is not of great concern and can be controlled via the addition of grazing fish. It is easily differentiated from beard alga in appearance. It grows in short, single strands of about 2-3mm. Beard algae is more serious. Its individual strands have a very fine texture. It grows in thick, furry patches, up to 4cm. Its resemblance to a green beard gives rise to the name. It cannot be removed mechanically.
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