Yes, all of them except my daughters 12 Gal Eclipse, I haven't got to it yet.
80 Gal, Pressure CO2, continuous water change.
30 Gal, Grow out, bare bottom, with plants in pots. Pressure CO2, continuous water change.
29 Gal, continuous water change. no CO2
25 Gal, full El Natural. no WC, no CO2.
20 Gal, Grow out, bare bottom, with plants in pots. Pressure CO2, continuous water change.
14 Gal Hex, Pressure CO2, continuous water change.
12 Gal Eclipse Gravel with potted plants, no WC, no CO2.
2 Gal hex, Pressure CO2, continuous water change.
3 Vases, no WC, no CO2.
All of them have soil under gravel substrates including the potted plants.