Festuca glauca= blue fescue, yes it is technically a type of grass. And a very pretty one at that.
I love the veg starts and your plants look SO much happier!!! Better than you give them credit for actually. I have never thought of praying leaves as something to be especially concerned with. But the pale one just looks as if it is still recovering from before and perhaps could use further flushing. And then some veg fert of course!