4 gal a week in my 37
18 gal a week in my 90

I had a 370 that I was doing 50 gal a week on.

1.785 gallons every day on a 140-150 ish system.

90 (~ 25%) Gal every week on my salty. 25 (25%) Gal on my fresh. The odd time it goes bi weekly due to my schedule but not often. Running carbon sure helps as well...

I don't have a specific schedule, its minimum once a month of 50% change on my lightly stocked 20G but sometimes more often depending on detritus buildup on the bottom of the tank. Never 100% change as some people do but sometimes upto 75% change.

The fish are happy and healthy and have been with me for 3 years now, so I must be doing something right!:wink:

the 90G F.W tank is 50% biweekly and sometimes 2 50% changes in a row, so closer to 75% changes once a month.

when I started I was doing 10% a week. Then i got more aggressive and did 25% a week. That eventually turned out to be an aggressive schedule for me. I've now settled out to 25% (33g) every two weeks.

If it would only come premixed and ready out of the tap :wink:

If that were the case then I'm pretty sure everyone and their dog would be in this hobby :lol: I think water changes (or lack thereof) is the number 1, or number 2 cause of people leaving the hobby, or deterrent from the hobby.

Expanding on that thought, we should do a poll to see how many use buckets vs. some type of automation. By "we" I mean you.

How do you define "automated" ?? Would my kids hauling buckets for me count ?

Or, pretending to go on vacation and asking Brett to do a water chnage for me while I'm away count ?

Automated would be, to me, no lifting buckets by any party. Brett would be an exception.