Help: SPS bleaching and STN

Thanks for the tip Mindy. I'll give those suggestions a try.

[asylumdown]

how are you maintaining alkalinity? Are you using an auto-doser? I had problems like this on my old tank when my alk levels weren't stable over the long term.

I am using a bubble magus dosing pump, dosing two part. Using baking soda (arm and hammer).