It was normal black gravel I found at a petstore. I know you’re in canada but I think yall have walmarts up there and my walmarts carry it. I can get you a picture if you wish?
The Spectrastone Gravel is 1/8 inch or so (At least according to amazon answers). Is that too fine for the python and will it get sucked up? If it's too fine I would have to clean it like sand. I'm looking to clean the substrate like normal gravel. Not having to be too careful when cleaning.