ZEO weekly water changes?

[lobsterboy]

Originally Posted by GreenSpottedPuffer

Why is it necessary?

I like doing them anyways and its a great habit but my fiance asked me today why I change water every week now (actually twice a week) and I have no idea why

its necessary to replace macro elements that are used by the zeolites, bak, etc. i find not as much to keep kh and ca up either using the KZ salt.

before i was using zeo i would do a 10%wc everyweek, or even twice a week depending on issues that would arise.

now with zeo the past 5months, i have been doing 5% wc every two weeks.

i was hesiante at first to stop the weekly water change, but after 2 weeks i noticed a difference all around the tank, by holding off the wc.