Black quarium gravel
Switched to sand so have no use for it. Over 10kg available. A mix of Petbarn gravel and aqua natural quartz. However I believe there's copper in it as snails don't survive in it (fish do fine), hence the price. $10 for all of it and the container, or cheaper for a little or if you bring your own container. Feel free to haggle. Cash only, pickup Burbank