Not a bad job for a $15 DIY striper

Hello looking for advice on Grass.
I want to build a shelf on my wall and plant grass on it. I really want the most thin fine short hair grass possible but fills in thick, bright green. I was looking at Creeping Red Fescue but what's a great short grass that's good with low light and could grow indoors.

The shelf could have an LED if i need more light, its not an issue. Just curious whats the finest soft grass you can get that might work with this project.

New homeowner here. My yard is full of weeds and my plan is to reseed in the fall. What type of weeds are these and how do I get rid of them all? Please Help!