Hi Allykahn,
We have plenty of customers that are using our pumps on LPS tanks, nano tanks, softy tanks, etc. I recommend two pumps for a 180gal tank, one on either side of the tank. You'll probably be happiest running them around 50-75% power.
You'll be very pleased with the broad, gentle flow these pumps put out, it's really quite ideal for LPS and soft corals.
-Tim