ISO of cheaper Aquarium Black Sand

[Wyn001101]

125 gallon want to stock geophagus fish with black sand. Black sand expensive: on Amazon best deal: 45 lbs $60 1” = $180 / 1.5” $270 / 2” $360. I would need minimum 1.5" $270.

Amazon.com : TheFrogHouse Black Aquarium Sand Substrate (45lbs) : Pet Supplies


Any suggestions for links to buy cheaper black aquarium sand (that sinks)?

 

[gage]

Black diamond blasting sand from tractor supply. Last time I got it, it was $10 for a 50lb bag. Just make sure you rinse it really good