Just figured I’d chime in.
My parameters for a 90gal SPS dominate tank are as follows:
PO4- .02 ppm
NO3- 5-10ppm
Alk- 8.1 dKh
Calc- 440
Mg- 1250
These params hardly ever fluctuate. My ALK fluctuates maybe .1-.2dKh a day.
Daily I dose flatworm stop x and acropower.
I dosed vibrant 2 days ago. Because although my PO4 is low I have some green algae growing thicker than I like on some parts of the rock and my glass has been getting green faster since I cut the fuge light down some.
As of 24 hours ago my tyree pink lemonade and my Strawberry shortcake showed signs of STN. It seemed to have slowed some now but coming home this evening I noticed that my Aussie toxic slimer and my MC Medusa are severely stressed and looking terrible.
My acans are puffy like they usually are.
At first I thought it may have been from a temp spike as my temp usually runs 79-80 and it reach about 82 Wednesday. However, after reading and asking several of my local reefers I do not think that is an issue. Therefore Vibrant is the only other thing that’s changed and the one most of us are leaning towards.
No cleaning around the house, no addition of coral not even a water change since last Sunday.
Here are some photos.
As you can see in the photo I took of my SSC the Aussie slimer was in good condition and now it is not.