In need of help from experienced sps keepers!

[Aquattro]

Originally Posted by jason604

After testing hanna phosphate carefully it was at 0.15!!! No wonder my acros were rtning.

My PO4 has been way higher than that most of this year. Won't cause RTN, sorry.

[straightrazorguy]

Originally Posted by Aquattro

My PO4 has been way higher than that most of this year. Won't cause RTN, sorry.

+1. I had an episode of 0.17 PO4 recently too and no RTN. Algae galore, but no RTN. There must be something else. Alkalinity swing?...