Separate names with a comma.
Bottom (the side that was up in the mold)
End view - not as much separation as I imagined, but still a swim-through
Side view - good caves
Top (the bottom of the mold)
Adam covered his up already.
Any sand will do, this one is a really fine white quartz. Used to form the mold.
$5 for 50 lb
Any sand will do, this is a basic one. Used to form the mold
$2.50 for 50 lb
I think any salt will do. This dissolves out during the soaking process.
Get at a feed supply store (it's used for chicken feed).\
$11 for 50lb
Get at any hardware store. Supposedly, White is better, but hard to find.
$10 for 100lb