I originally used sand in my Pygo tank, but switched to gravel because cleaning sand was a *****.
I keep a few large pieces of driftwood in there, along with some plants, which the P's have responded well to.
As for equipment, good biological filtration is crucial IME, they get stressed easily under poor water conditions. I'd suggest a couple of Bio-Wheel power filters to do the job.
Additional stuff I have: AC901 PH, 2 300 watt unbreakable heaters, extra lighting for the plants