Introducing more air and hence oxygen into the pond and /or filter, improves the bacterial count in the biological filter to improve its efficency.
During hot sunny weather oxygen is depleated and fish suffer, so the addition of air into the pond can also inmprove the wellbeing of your pond inhabitants.
BLAGDON KOI AIR A specially designed air pump for the larger pond with the ability to pump to several meters depth. (please note Blagdon koi air pumps are not supplied with airline or airstones)
