Alright, so 1 or 3.Basically, yes. You can do 1 or 3, not 2 not 4. 5 might be too many for the tanksize already.
The tank is largely structured correctly and planted nicely, remove the LED-"UFO" as it will likely be a stress factor, also tune down the bubblers. Some extra driftwood and leaf litter would also be appreciated by the fish.
I'm soaking more driftwood and waiting for it to sink before adding it, and I'm looking into getting the leaf litter with added things like the cones and other litters. I have more floating plants to cut down the light since then and removed one of the bubbles and turned down the flow as well.
What do you mean by LED-"UFO"? I don't think I've heard that term before.