FILTER WOOL

[capper]

We have a 16-gallon aquarium for just over one year. We have also have had a 48-gallon aquarium for about 6 months. Both have filter that operate on top of the tank next to the lighting unit. We were told not to change the filter wool as it would take away important bacteria from the tanks. However, we would like to know when and how it would be okay to change the wool in our 2 tanks. The wool has become extremely polluted and has been rinsed out with the tank water weekly or biweekly since we have had them. When is it okay to replace them? Should we replace one piece of wool in each tank at a time? If so, how long should we wait before changing the second piece?

Your advice is appreciated!

 

[Pure]

Not really sure about the set up your talking about, bu hat doesn't really mater. Yes by all means change them. If the filter has 2 change one at a time waiting a week or 2 weeks between the change.

For future reference changing them every 3 or so months is ok, heck changing them once a month is ok too, but not necessary.