Do you have any loaches or plecos? They love to see what is underneath your plants for some reason.
I second the deeper substrate suggestion. It may be expensive for a 380 gallon, so I would suggest turface/soilmaster pro/schultz's aquatic soil which is fairly cheap (especially the first two). I think all three are basically the same, with little differences, someone that has used all three can chime in here. I have had good success myself with Schultz's aquatic soil I got from the hardware store.
wait, I didn't read your name, Manofcichlids... Cichlids are notoriously tough on plants, moving them where ever they please. Some even eat them for fun. If this is a cichlid tank you may want to stick with plants that you can tie to rocks or wood - Anubias sp., Java Ferns, and Bolbitis h.
Somebody set us up the tank!
ALL YOUR FISH ARE BELONG TO US...