Source for substrates in Ontario Canada
I'm returning to the hobby after a number of years out of it. Just setting up a new tank and decided that I wanted to do something better for substrate. After some digging I figured STS was the way to go. All I needed was a convenient local source.
... ... Found that TSC stores carry both Safe-T-Sorb and blasting sand (white silica and what looks like Black diamond or an equivalent) in 40 lb bags.
Hopefully this helps some others.