[Oleman]

To mix it up, I've had a few differant substrates in there. Currently it's separated with driftwood.
This last time I went with white silica sand on the left amd gravel on the right.
My pictus prefer the sand I've noticed along with the tetras. The loach and others tend to stay I gravel.
I had all white silica in once before and it quickly became over run with detritus even with weekly water/ sand siphoning.