Thanks guys for the advises. I don't think that the Seio is the cause of the problem. It is blowing at the front of the glass to reduce the current. The SPSs I have below are doing very well. Place corals, not in the direction of the Seio current, still melt or bleach.
My own guess is Temp. I have 2 choices to consider, pls comment. 1. Change light to T5 (assuming not buying chiller) and 2. buy a chiller.