For almost three years now I have been adding plain old RO
water into my sump every day for top off. I add Kalk
at night (10oz). Now I have been hearing locally that the LFS
's in my area are saying you need to add some kind of buffer to the TOW, like Kent's R/O right or their Osmo Prep. Is this true?
On the other hand what about adding the Kalk
and the TOW at the same time. I mean let's say I add a gallon of TOW a day. When I add that, mix the Kalk
in that water and then add to the tank. WHat I am trying to ask is... What do some of you do when adding TOW and Kalk
to your reefs?