When keeping freshwater fish and plants, the general hardness (GH) and carbonate hardness (KH) of aquarium water should match their natural habitat.
To maintain optimum performance of your filtration unit, the UV-C lamp should be replaced every year.
An ideal time is Spring, during pre-season pond maintenance.
Remember! Avoid touching the new UV lamp with your hands as oil transfer will negatively impact the performance of the lamp.
These UV lamps will fit the new style of Laguna Pressure Flo Canister Filters (yellow handle).