opinions on Micro sword (lilaeopsis)

Hi! I'm planning to buy some Micro sword or lilaeopsis grass plants. I need
a forground grass-type plant that will cover my gravel in a nice lawn. What
are some of the tips for keeping it growing well and propagation? I also
keep a couple bronze corys and yoyo loaches...would I have to keep these
guys away from digging the stuff up till it rooted well?

My aquarium has 4 wpg and roughly 25-30 ppm of C02 with flourite as a
substrate.

Thanx for any opinions on this stuff!!

Dave.