2217 is classic model, proven milion times. However 2076 is something completely different - all kind of functions. If 2217 satisfies you needs 100%, why replace it? If you (just) want to fly on another planet Filter - buy 2076.
Thanks, guess i will be needing to do water changes more frequently.
Since i reside in australia, we are currently experiencing some drought conditions.
Luckily it has been raining this spring and autumn.