Water Change Schedule?

[dwall174]

20 gallons every week! Works out to about 15%

It makes it easier when all you have to do is turn two valves to do a water change check out "RO/DI & Top off" pic in my gallery.

 

[Reefguard]

I do 20 gallons every other month.

 

[raymond0512]

I change 15 gallons bi weekly on my 90 gallon