G
greaser
Guest
When you are ready to clean the filter, should you clean or simply replace the filter media entirely? Some experts caution that replacing the filter media removes too many of the beneficial bacteria, and can essentially throw the aquarium into a new tank break-in cycle. Other experts argue that there are sufficient bacteria on the rocks and plants, and in the gravel to prevent the tank from having to go through a break-in cycle when the filter is replaced. My viewpoint is that what you should do depends on the type of filter media you are using.
If you have filter media containing carbon, ammonia absorbers, or ion-exchange resins, it should be replaced if it's more than three weeks old. After a couple of weeks the absorbing qualities in the media have been exhausted, and there are enough bacterial colonies elsewhere to offset its removal. Media that acts as a mechanical filter instead of absorbing toxins (i.e.: ceramic rings, filter fiber, or sponges) should be gently rinsed to remove debris and returned to the filter. If care is taken to use water that is the same temperature as the aquarium water, and the media is quickly returned to the filter, the bacterial colonies growing on them will not be lost entirely.
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If you have filter media containing carbon, ammonia absorbers, or ion-exchange resins, it should be replaced if it's more than three weeks old. After a couple of weeks the absorbing qualities in the media have been exhausted, and there are enough bacterial colonies elsewhere to offset its removal. Media that acts as a mechanical filter instead of absorbing toxins (i.e.: ceramic rings, filter fiber, or sponges) should be gently rinsed to remove debris and returned to the filter. If care is taken to use water that is the same temperature as the aquarium water, and the media is quickly returned to the filter, the bacterial colonies growing on them will not be lost entirely.
(Message approved by admin)