Description
When placed into the pond the Supa Pond Blocks Algae Prevention slowly dissolves releasing di-methyl urea into the pond waters. Whilst totally harmless to fish and healthy pond plants this inhibits the growth of water born algae.
When placed into the pond the Supa Pond Blocks Algae Prevention slowly dissolves releasing di-methyl urea into the pond waters. Whilst totally harmless to fish and healthy pond plants this inhibits the growth of water born algae.