Well it's time for an update. Things have been going fairly well for me. It's been a month since I added my 3rd healthy pot of hairgrass which hadn't gone through the bleach dip. I found that all 2 pots of hairgrass that went through the bleach dip had all their old blades of grass turn brown and die. This set things back by a fair bit as it took a lot longer for these plantlets to grow out new blades and then send out runners. I guess I might have had much better results if I hadn't done the bleach dip.
Here are the comparison shots.
Tank about a month back:
Tank currently:
All in all things seem to be going well. The only annoying thing is that a lot of the plantlets are sending out runners which come up to the surface and then loop around. Doesn't look very nice and it seems like it slows down the actual spread in surface coverage of the hairgrass. I think I made a bit of a mistake with not planting the plantlets too deep. I was worried about killing it by burying the crown too deep, but the few plantlets that I planted this way seem to be doing fine and have sent out most of their runners under the surface.
I'm going to continue with this for another 3-4 weeks and then submerge the whole setup. I plan to have Manzanita driftwood, anubias nana, anubias coffeefolia, java fern and rotala rotundifolia. Keeping my fingers crossed. This is going to be my first planted tank =).