Further to purchasing the bulk bag last month and treating our koi pond with Aquaplancton last week, we have seen a dramatic reduction in blanketweed. Where we previously had to clean the sponge pre-filters on the pumps every day, or 2nd day at the latest, we have now been running for 10 days and the pumps still run nearly as well as when we changed the pre-filters (which coincided with the initial Aquaplancton dose). Excellent product! Highly recommendable.
Blakeney, Glos by e-mail