I am still on pg 18 of this thread, but want to ask a question about all this bacteria talk. If your tank is growing SPS with out any other form of bacteria dosing, why continue doing water changes? If you tank is thriving and growing all types of coral under the sun, then your tank should have a good amount of bacteria in it without the need to having to does Blue bottle, blue pill, and so on. Won't performing weekly, bi-weekly, monthly water water changes remove the beneficial bacteria out?
I am not a scientist, and don't pretend to be one. But to me, after your tank has matured in the sense that you CAN grow corals (SPS especially), then water changes are no longer needed as long as you have the means to export out no3, and po4.
Now to continue reading this thread.