![PSA: Pool Filter Sand & Black Diamond Blasting Sand are cheaper than many fancy aquarium sands, and won't mess with your water parameters : r/Aquariums PSA: Pool Filter Sand & Black Diamond Blasting Sand are cheaper than many fancy aquarium sands, and won't mess with your water parameters : r/Aquariums](https://external-preview.redd.it/fN6m-5Euy4E27vmPnOCJaFHK1MTsccHrwsk4zlf6WZs.jpg?auto=webp&s=5978a165269a457db089444b515a2286b0f5381c)
PSA: Pool Filter Sand & Black Diamond Blasting Sand are cheaper than many fancy aquarium sands, and won't mess with your water parameters : r/Aquariums
![Close up photo of medium grit black diamond blasting sand. Taken in sunlight to show coloration of the sand. : r/walstad Close up photo of medium grit black diamond blasting sand. Taken in sunlight to show coloration of the sand. : r/walstad](https://preview.redd.it/t9c1q3mmuhf61.jpg?auto=webp&s=4ef3ef042143a6827cc6d0c82376bd006725cb1f)
Close up photo of medium grit black diamond blasting sand. Taken in sunlight to show coloration of the sand. : r/walstad
![Amazon.com: Black Diamond Blasting Coal Slag Abrasive, Fine Grade, 20/40 Grit (50 lbs) : Tools & Home Improvement Amazon.com: Black Diamond Blasting Coal Slag Abrasive, Fine Grade, 20/40 Grit (50 lbs) : Tools & Home Improvement](https://m.media-amazon.com/images/I/31KBDtKF83S._AC_UF894,1000_QL80_.jpg)
Amazon.com: Black Diamond Blasting Coal Slag Abrasive, Fine Grade, 20/40 Grit (50 lbs) : Tools & Home Improvement
![8 DOWNSIDES TO BLACK DIAMOND BLASTING SAND | Budget/Cheap Aquarium Substrate Still Worth It? - YouTube 8 DOWNSIDES TO BLACK DIAMOND BLASTING SAND | Budget/Cheap Aquarium Substrate Still Worth It? - YouTube](https://i.ytimg.com/vi/IqaO7okrRVA/maxresdefault.jpg)