As it is still the same volume of water. By adding an extra filter, you are only extending the bio load and flow your tank is capable of. Your tank will still be producing the same amount of nitrates in the same amount of water, that still need removing, something a second filter will not do.
Hope that helps
Westwood
i hardly ever do water changes ... my waters normally good though... i dont know why the filters working the plants are growing.. but yet i have 0 ammonia and nitrites so i dont see a point in changing the water if theres no pollutants in it?
I know I'm should do weekly water changes but now that I've install 2 filters with over twice the flow rates & filter media than before, why can't the water changes regularity be extended?