Aquariums: Haven’t changed the water in over 2 months.

I used to do weekly changes of about 40-50% but now that all my plants are fully established and there is beneficial bacteria keeping my nitrites and ammonia at next to nothing, the plants sucking up everything toxic, I haven't had to do anything but add water from evaporation loss and change the filter pads monthly. My water is crystal clear, my fish are thriving, and my shrimp and snails are starting to spit out lots of new inhabitants. This aquarium is now virtually maintenance free. And has become my tv screen.