The major leap in the G series aproach to tank maintenance is to get hobyists away from calender based maintenance schedules and move them toward condition based interventions. This limits wasted time and resources as well as reduces the stress on the system.
I respectfully disagree.
the idea of a maintence schedule based on conditions only is very bad for most aquarists.
why?
because many times by the time the aquarist realizes that the conditions are bad, its too late.
reactive maintenance is a bad philosophy to follow, because quite often, the damage to your fish may already be done. water changes after the fact may not help.
regular water changes at regular intervals eliminates this problem and ensures a stable system, not a system that is gradually deteriorating up to the point of the next water change.
I also fail to see how the filters represent 'good value' when you are paying literally 5 times as much as a similar sized filter (eg a rena XP2) that essentially accomplishes the same job? the probes alone are not worth the 5x price increase IMO..
don't get me wrong - this is not something that is unique to fluval filters. it is true of literally all high end products in almost any market - the top of the line most expensive products rarely give you the 'best value' for your dollar, but they appeal to those who do not mind paying top dollar for the best available - even if there are other products that are less expensive but do not have all the 'bells and whistles'
however, is the Fluval G the best filter available right now just because it is among the most expensive? time will tell.
that being said, they sure look great!