I just started with my first aquarium with fish ever, a 10 gallon high hex, and it has been running now for about 2½ weeks. I got this starter set as a gift, and it came with a 10 gallon Top Fin power filter. The instruction says you should replace the single cartridge in that filter every 4 weeks. Now to my question:
If I understood it correctly, the main biological filter of the aquarium is located in the filter media of the power filter. As there is only this one cartridge in the filter and nothing else, does this mean that I remove nearly all of my biological filter with each and every cartridge change? Wouldn't this lead to large nitrogen cycles upon every cartridge change? Is this supposed to be like that? Does anyone have first hand experience with that kind of filter and its cycling behavior?
If I understood it correctly, the main biological filter of the aquarium is located in the filter media of the power filter. As there is only this one cartridge in the filter and nothing else, does this mean that I remove nearly all of my biological filter with each and every cartridge change? Wouldn't this lead to large nitrogen cycles upon every cartridge change? Is this supposed to be like that? Does anyone have first hand experience with that kind of filter and its cycling behavior?