There is no "correct time". I would suspect that their lifetime would be many years. The media rings should only be replaced if they are decomposing or are totally blocked and have lost all their ability to house the bacteria that forms as and where they are supposed to. The normal thing to do is to wash about 3/4ths of them well and then only rinse the other 1/4 before putting them back to work in the filter thereby keeping the cycled bacteria alive and working.
It depends on the type of filter... different filters are designed differently. You would need to tell us the model or type of filter.
Remove pan. Pull filter. Replace filter and gasket. Torqe to spec. Refill fluid to correct level.
A small pebble from inside the aquarium
An under gravel aquarium filter is one where the filter is located beneath the gravel. The filter is responsible for keeping the tank oxygenated and looks better out of sight.
If your filter is old it means that dirt has gotten into the air tubes. Replace it.*I had the same problem*Your filter must be old or dirty.Or you could just have not connected it propelHOPE IT ALL WORKS OUT FOR YOU
Obviously, you need to replace the pump ASAP. If you can't get to the store today, do you know a fellow aquarium hobbyist who could loan you a spare until you can replace yours? To avoid problems in the future, you need to think like NASA. REDUNDANCY! Always have a backup filter, heater, pump, and if possible a backup tank. We love our technology ... until it fails.
follow the instructions.
$39.99
put a filter in
water level in aquarium not high enough or if it is, add some water to the filter equipment and sound will stop : )
Aquarium filters can range from $20 to several hundred dollars depending on the quality of the filter and volume of the aquarium. There may be specific types of filters that work better for specific types of fish.
Italy loo