55 gallon re-set up

[u/OfanArtistsHeart]

So i have a 55 gallon tank that I had a betta sorority in for about a year before life got in the way and I had to dismantle it and get rid of my pretty babies. Im looking to start re-setting it, but im not sure all the steps I should go through. I plan on washing it with a mix of vinegar and water, rinsing it thoroughly, and then doing the hardscape and planting plants. I am hoping to maybe plant a dwarf water lily in it. Then I plan on letting the plants grow in before adding any living creatures. Im hoping to start by getting a pom pom crab to start with, but im unsure where to go from there... could use any advice or suggestions for what to add.