75mixedreef
Member
Another thing to add is that your dosing needs will grow with your corals and your (coral) stocking list. A couple small frags will not use up more than what you can replenish with water changes, but as those frags grow they will use more and more. Adding more frags will use up your Cal, Alk and Mag even faster until it gets to the point where water changes are just not enough. This is why testing is important. You especially want to stay on top of your Alk. That was the first thing I learned I needed to dose and that was just with one frogspawn coral and a couple mushrooms. Just keep an eye on your growth and if things seem to slow down, its time to start testing and probably dosing.