Use NT Labs Magiclear when your pond water appears to be green and/or cloudy. Magiclear causes particles in the water to clump together which can then be removed by the filter. Do: Aerate pond well e.g. fountain, waterfall or air pump. Conduct a partial water change (as much as is practical) before use, especially if the water is extremely green, like “pea soup”. Switch off pump only if strong flow rate could prevent particles from clumping BUT remember to switch back on as soon as water clarifies. Mix the correct dose in a clean bucket of pond water, then pour evenly around the pond. Clean the collected particles from the filter after treatment. Without a filter, some clumps may float which can then be removed using a net. Use when you have plenty of time to observe the fish and take action in the unlikely event of a reaction. Don’t: Do not use when the dissolved oxygen may be low (e.g. at daybreak, in hot, humid or thundery weather, or within three hours of feeding). Do not use if there is nitrite in the water. Use PondLab test kits to monitor water quality. Caution: Failure to conduct a partial water change on extremely green water, “like pea soup”, may result in a rapid reduction in oxygen which could be dangerous to fish!