My current planned stock list is below. This is my total list. The first 4 will go in in the near term, the others over time if I feel there's room and the tank can handle it.
6 rummynose tetras
3 Boesemani Rainbows
3 cory cats
king tiger pleco
2 GBRs
1 rapheal cat
possibly a few loaches and some shrimp.
Other than airstones, that's all the movement I have.
I don't feel that I have enough filtration with just the emp280. I also don't want a 2d HOB, which is why I'm considering the addition of a canister. I have particles in my water that just won't go away, and other than being underfiltered I don't know what it could be. In my HOB now I'm running the standard filter, floss, and ceramic rings.