Not recommended to be used in smaller water features
1 block treats 1000 Litres
Effective for up to 3 months from a single block
The Bionatural Frog Block has been made with natural bacteria strains designed to control and starve algae of the necessary nutrients needed to grow. Being a bionatural product, it is harmless to fish, pets, pond plants and wildlife, allowing for complete peace of mind whilst dosing your pond.
When used as directed with a pump or filter system, the block has further abilities to prevent mosquito larvae from developing, whilst still being safe for any animals that consume the water.
To calculate approximate pond capacity: Length (cm) x Width (cm) x Depth (m) and multiply by 1000 for Litres