I have since added more plants, six amano shrimp (several months old), one algae eating shark (3 years old), and a second DIY reactor.
I will be adding some more carpetted plants mixed in with the baby tears. I'm thinking about removing the thicker piece of driftwood to the right, in exchange for possibly a rock or several more tangled pieces of driftwood.
I've been told baby tears don't work well with DIY CO2, but mine seem to be doing alright after 2 weeks.
I'm considering going with an eheim Ecco for this tank, but I feel like the zoomed 501 is doing the trick right now.