Disaster!

[Timbits]

I did regularly test and everytime I did, levels were in check. So I admit I did slack off on the testing for a while.

Would a sudden decrease in phosphate lower alk? Or chemi clean in the system too long? Do u guys add anything to your top off water? Can't think of anything else that would have caused this.

Got levels back in check now and corals are looking good.