It's been a long time since I installed and setup the WXM, but FWIW , here's what I use. Pretty simple, 2 tanks, same 2 profiles using Reefcrest and Pulse (standing wave.)
DT
Fallback ReefCrst
Set ReefCrst
If Time 22:00 to 12:00 Then PulseDT
If FeedD 030 Then OFF
FT
Fallback ReefCstF
Set ReefCstF
If Time 22:00 to 12:00 Then Pulse
If FeedD 030 Then OFF
The only difference between PulseDT and Pulse is the timing required to generate the wave in different size tanks.