Oase Biotec Pond Filters use a combination of structured foams of fine and coarse grades to produce a high level of mechanical filtration and biological filtration.The unique design of the filter allows for the side attachment of Bitron U V 's rather than the top. Out of your for easy filter servicing.
Summer usually means increased pond water loss due to evaporation, which of course leads to topping off our ponds more. You should always add dechlorinator when topping off the water level of a pond. Any amount of chlorine (such as that found in treated water) can be harmful to your fish. Even if it is not enough chlorine to mean immediate death of the fish, this chlorine can still cause harm to proper gill function.