I have added some tiger Vals, removed a large rock and moved some Crypts. I will probably flip flop the sword and the rest of the crypt becketii. I also was able to move the main piece of wood back to have less void space in the back and more plantable space in the front. Most of the naja grass and floaters are gone too.
I can't put anything in the back left corner because there isn't one. It's a corner aquarium. I was going to swap the crypt becketii with the sword on the left. That's not a Val, it's an onion from a Petco bulb pack.. Might move it, but it's taking off there.
I would not do tetras in a big tank I had some zebra denios and they kept getting stuck in the overflow and would find them flopping around the filterpad in my sump but if you must gutter guard helps cover the overflow