I recently shut down a 72, 77, and 33 gallon tank. Put all the livestock in a new 240 gallon.
Here is a picture. The 72, and 77 were sold. The 33 system is still for sale.
I have 100 pounds of rock,some live, some dry.$1.00 per pound. It was left over after the move.
Anyone else have pictures? lets see some tank shots.