Should I be doing automatic water changes?

[shred5]

I use the same ATO / AWC set up on my Red Sea tank, 108 in the display and 31 in the sump. I love it. I change about a gallon and a half every day. I love the way you can adjust the refill time so you don't just dump a bunch of new cold water in there once a week or so. My water chemistry stays level all the time. And with the ATO built into it it takes away another routine task. Saving that time gives me more time to do other maintenance items, and more time to look at the tank and enjoy it.

Ah crap I just looked at that and it is cool.. how is easy is that!! I was going to do it with a GHL doser. Now I want one and the new tank is not even set up yet..

 

[Randy Holmes-Farley Verified Community Expert]

1

For a 50% water transfer +- 25% of the newly added water will be wasted. This is only an estimation, not a correct calculation. A lot of good water wasted!!
The bigger the water change the more water is wasted when this method is used.?

That's correct. if you need an big emergency water change for some reason, a continuous method is by far not the best. :)

 

[dragonfish]

yep great method im doing 0.5% w.change a day