Water Change Amount?

[austin552]

I have a 29gal with 40lbs of LS and 50 lbs of LR. I there for no longer have 29 gals of water. soo...
If I set a routine water change of 20% every two weeks how many gals should I change?
20gals=4 gal change
25gals=5gal

 

[NEEDMONEYFORMORESALT]

Doesnt have to be an exact science, important part is when you put a new salt mix in it replenishes the nutrients that were lost over time. Do 5 to 10 gallons every week or two.

 

[Wryknow]

5 gallons every other week will be plenty provided everything in your tank is healthy. If you have parameters that are way out of whack then more water changes may be necessary until you get them under control. "The solution to pollution is dilution!"

 

[NEEDMONEYFORMORESALT]

http://www.reefcentral.com/calc/RODICalc.php