Pond Thermometers

Pond Thermometers are useful in Spring & again in Autumn to determine when & what action needs to be taken as triggered by any given water temperature. This would include when to commence feeding fish in Spring & when to switch to Summer food & again switching from Summer to Winter food in Autumn. Also Biological Pond Filters are best seeded with bacteria to quickly get them working at maximum efficiency but this must only be done in the Spring when the water has reached the required temperature.