auto water change suggestions

[SFish]

The new water is in a covered Brute and my ATO's keep the salinity constant. I'm sure there's some variation in each run cycle, but it seems to average out because I haven't seen any drift. Mind you, the DOS are all running at the same time.

I suppose even though the water is constantly overflowing the evaporation would still lower the water level in the sump or container.

 

[JaySchulz]

I was planning on setting up a Genesis Renew for daily 4-5 gallon water changes

 

[hkgar]

Since it's a planning thing, I thought I'd mention that this is not really a substitute for regular water changes IMO. People who set up an awc seem to really like them, and I don't doubt that they have all those benefits especially for keeping trace elements in a steady range. But while they are no doubt a help to the system, I don't think it is a replacement for regular maintenance. Like, for nutrient reduction, the math for a few gallons every day vs. 10% every week is a significant difference over time. And that's if you're just changing the water, and not blowing detritus off the rocks or vacuuming the sand, both of which are extremely helpful in new tanks as the denitrifying bacteria settle in and the algae uglies run their course.

So I would say go for it if you like to tinker, with realistic expectations. Good luck!

I have a 165 total volume system. I do AWC of 3.5 gallons/day over 6 days. That is 21 total gallons and if I did it all on one day it would be a 12.7% change. Over 6 days the percent changed is 12.1% Not much different.