envii Sludge Klear Pond Sludge Remover, Natural Bacteria Sludge Buster Digests & Controls Organic Waste, Safe for All Fish & Wildlife Treats Up To 60,000 Litres (13,200 Gallons)

Worked brilliantly. Pond before was basically black. Now it is clear! Awesome. First 2 photos are before. Last 2 photos are after.

Product seems very good delivery took a long time

Keeps the sludge away and keeps the filter clean as well

At first you will wonder if you wasted your money, but this product does work. I started my application 6 weeks ago & only just started seeing the results.

pretty sure it worked but then the pond filters kept getting blocked so wether it actually broke down the sludge is hard to tell

It was as "described on the tin" however the product did not solve my pond problem. This is no fault of the supplier but a really hot summer making more algae

Extra large pkt of pond clearing tabs simple instructions to clear pond water of sludge by tablets with enzymes ,so far they are doing as described clearing up. My pond water,now several months of use seems to also reduced the dreaded pond weed

Very clever marketing for products that don’t work. You buy their pond clear and that causes more algae to grow. You buy their algae product and then you need the sludge clear. It goes on! I don’t rate them at all.