At this point, I also changed salt mix from Red Sea Coral Pro to the regular Red Sea, primarily so I could target a specific dKH near NSW or around a dKH of 7 as some reading of ULNS suggested that SPS did better atlower alk levels (not that my system was anywhere near an ULNS) and when I did my weekly change the fresh saltwater of the Coral Pro with a dKH of around 12 didn’t throw things off a little.
I was also reading a lot of opinions that some “dirty†water was good for SPS and was going to see how the weekly water changes would affect my nutrient amounts and in turn what the higher levels did to my coral, particularly with the color in the acropora.
Anyway, I got things dialed in on my dosing pumps and went on vacation with the tank left to my APEX controller and my automatic fish feeders with great success (no losses) and at a huge risk as I had no back-up plan/person if things went a south. I did check my Apex status obsessively so my wife would argue that it was a not asuccess, at least in regards of the true meaning of vacationing as I could not relax about the tank!
My parameters upon return were stable:
Ca = 410
dKH = 7.2
Mg = 1420
NO3= 2.0
PO4= 0.06
The only issue I was seeing was green hair algae re-establishing its presence in the tanks. As I wanted “dirtier†water, I thus planned on continuing with the current dosing and maintenance schedule accepting the growth of some nuisance algae until my new tank upgrade was installed. My luck, however, was about to change…