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MAINTENANCE OF THE INSIDE FILTER
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EVEY TWO TO FOUR WEEKS(DEPENDING ON THE FISH POPULATION)WASH OUT THE FOAM MATERIAL WITH LUKEWARM WATER(WITHOUT ADDING DETERGENTS),PRESS OUT THE WATER,AND REUSE THE FILTER.WHEN THE FOAM LOSES ITS SHAPE,REPLACE IT WITH A NEW CARTRIDGE.
MAINTENANCE OF THE OUTSIDE FILTER:
WASH THE SUBSTRATE WITH LUKEWARM WATER EVERY THREE OR FOUR MONTHS,RINSING IT UNTIL THE WATER IS CLEAR.FOLLOW THE DIRECTIONS FOR USE.WHEN CHANGING THE FILTER MATERIAL,REUSE ABOUT ONE THIRD OF THE OLD SUBSTRATE.
IMPORTANT:NEVER WASH FILTER MATERIALS IN WATER THAT IS MORE THAN LUKEWARM(ABOUT 86F-30C).NEVER BOIL IT OR DISINFECT IT;THAT WOULD DESTROY THE FILTER BACTERIA.
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