ok a little confusion here, i thought most the bacteria was in the filter right? well that being said i aint changed none of my filters(multiple tanks) since i put them in... i rinse them off regularly but i dont change them. the reason im asking is i just bought a new overflow and i read on the box it said replace the filters monthly... ummm?
and if you change the filters monthly what kind of effect will it have on the tank?will the nitrous(sp? no2 whatever that one is) shoot up or anything?
more info? thx
:edit:when i say filter i mean filter cartridges/pads
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and if you change the filters monthly what kind of effect will it have on the tank?will the nitrous(sp? no2 whatever that one is) shoot up or anything?
more info? thx
:edit:when i say filter i mean filter cartridges/pads
end edit:

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