So frustrated!!!!!!!!

[doorlady]

We have been having some kinda issue that we can not figure out. Losing some of our SPS. They start turning white at the base and it moves up a little each day. We have been able to save a couple of them by fragging them up. NOw it is starting to happen in our other tank. What could this be.
It is frustrating because we have so many that are growing fast and these these that are dying.

Water par.
415 cal
9.9 alk
1135 mag.

 

[plyle02]

base up can be either lack of flow or high PO4 IMO... I would look into both... Also, your mag is a bit low, I would look to pick this up over a week or so...of course, just my opinion...