Regular W/C vs. Dosing

I've always read that if you do a regular waterchange of at least 10% you don't have to worry about dosing supplements and that's it's the safest way to maintain trace element levels. So that's what I do..I change 15% of my total system volume every Sunday and my pH, Alk, calc, and mag stay at constant levels.
I'm just curious how you do it. Feel free to explain why;D

Regular Water Change

Dosing (in any manner)

 

Well in heavy mineral required systems (Mature SPS tanks), it is necessary to supplement or you'd be changing water every day. SPS tanks can go through calcium like nothing.

 

I voted for dosing, but agree slocal....there should be an option for both water changes and dosing. I do both, regular water changes weekly to replace trace elements, but manual dosing to replace calcium and magnesium. I have no desire to do water changes daily.

 

I have a low stocked tank at the moment so I rely mainly on my water changes but I dose a little from time to time.

 

I do the same.

 

im lazy.. do 1 water change every month and dose daily.. calcium, mag, alk, ph buffer, when needed..

 

bump

 

Both...

 

both for me at present
when my tank was full off soft corals and LPS , water changes kept the numbers where I wanted them
shifting the tank towards SPS has seen a slight drop over the course of a few weeks on the 3 calc , alk and mag ( with alk being the 1st of the 3 to require supplementing IME)

Steve

 

Yes I don't believe these are "perform one or the other" But both are needed. Most commercial salts do not contain enough CA, ALK or Mag for my liking. Despite water changes I also have to dose. I also have to buffer my water change water.
As your corals grow and demand more you need to increase the dosage

J