Update:
It was water change day (a bit delayed from my usual) and I thought I would take some pictures and update folks. This tank how has 2 new inhabitants, or 2 new types of inhabitants. The first are 2 rabbit snails. I've been quietly trying to keep rabbit snails for a few months now. I say trying because I ordered specific snails several times from the only person I could find selling them online and they kept dying on me. It took me a while to figure out that most of my tanks are simply too cold for them. I just assumed they would be fine if the water temperature was in the 60s. Apparently not.... it didn't matter how hard or soft the water was, they kept dying at that temperature. But in the 70s and they were fine. I actually don't have many tanks that temperature anymore so they ended up in this tank and are doing great. The crayfish treats them essentially as furniture.
It's also possible the place I was buying from were just giving me sick snails since they were all wild caught. These fellows (which I am also assuming are wild caught) are from petco.
The other inhabitants are cherry barbs! The Wife requested some nice red fish to swim in this tank and frankly, I've always wanted to keep them. They were sold to me as veil tail cherry barbs, so they have a little bit of extra fin. Overall I'm quite happy with them.
I went ahead and got them because Mr. Pinch (now strongly believed to actually be Ms. Pinch) has left my remaining fish alone in this tank for a couple of months. I think she realizes the food I give her is quite plentiful and there is no reason to go on a murder spree. Here is how everything looks now:
You can't see it, but I also changed up the vallisneria in the back. Or rather I changed up some of it. I ripped up a dozen or two torta, and replaced them with 2 plants of vallisneria jungle. I bought them from an online store and honestly expected to get more then 2 plants because I bought 2 pots. In the past vallisneria has been sold in bunches. But they really did just give me 1 plant per pot. They were not cheap either sooooooo guess I won't be buying from them again.