I plan on adding a small stack of pvc pipes behind the drift wood to allow them to hideout. It would be out of sight. I wanted to add taller plants in the background but the stupid filter blocks out most of the light so nothing grows in the back of the tank.
I actually got my first dwarf puffer in 2008. Sadly, the puffer didn't lost long after being moved after I graduated from undergrad. Mr. Peabody was a lot of fun to watch hunt snails. I find it interesting and a bit disappointing that one of my current puffers does not like snails. Cutting back on allowing the snails to grow in my 10g because of that.