Trough Block Algaecide. Box of 20

• Trough blocks have algaecide which controls algae and slime in stock troughs
• One 220 gram blocks treats 7000 litres of water with block lasting 2-4 weeks and should be replaced when slime starts to return
• Trough should be cleaned prior to use
• A block will add copper to the water and should not be used where copper toxicity occurs
• Active ingredients: Each block contains 63g/kg of copper as present 25g/kg copper sulphate
• For domestic stock water treatment only

Available to buy each or in a box of 20