Liquid ferts, co2, root tabs and diy co2 if needed.
2 marineland hidden led lights put together and over the tank roughly 10" from the substrate.
It is cycled and has been a home to snails shrimp and a few tetra.
I uprooted the grass during a re-scape recently. It was half dead and after trimming all bad sections off it is really short. I have faith though
I had a really hard time getting DHG to carpet with a lot more light than I think you've got and most people I asked said I'd need CO2 and patience to get any kind of thick carpet from dwarf hair grass.
I don't think 48-50 PAR is low light, but in fact medium light. I'd be interested to see how liquid CO2 and ferts will help the carpet grow. My guess is though, you'll need pressurized CO2 to get the robust growth we see in high-tech tanks.
Thanks for keeping an eye on the thread. I will update a lot. If it doesn't work I will go high tech. I am an extreme diy'er so thought I would give low tech a shot. The rams horns are at it again lol.
Sent using voodoo through my phone to your retinas.