I have a Fluval Spec V, and love it.
With the stock light, I didn't see much growth in Crypt parva or Marsilea hirsuta.
Crypt undulata did very well.
Anubias did great.
Bacopa carolina old growth wasn't happy, but new growth was fine.
I don't know if it was an emmersed/immersed thing or just different conditions. The new leaves were smaller and lighter in color and the new stems were thinner as well.
I also had frogbit and water lettuce as I've read those are nitrate busters.
I have a dwarf lily which I love, but it takes a lot of pruning to keep it in check.
I have about the same stock as you as well.
1 horned nerite
1 p diffusa
2 amanos (but I might remove the female, as she's twice the size of the cherries and kind of aggressive)
6 Danio erythromicron, which looks like it's smaller than the one you talked about.
I think 6 CPD would also be good, but I've never kept this fish.
The Danio erythromicron is pretty shy, so they're more eager to swim out and about when they have plenty of plants to hide in and not a lot of current.
I eventually upgraded the light.
This isn't a good pic, but it shows the size of the Danio erythromicron in relation to cherry shrimp.
Again, not a great pic, but this is what those fish actually look like.
The least killifish (Heterandria formosa) is another one to consider for your water conditions.