mumblebee62

Hi Very new to shrimp keeping here..I have a cherry shrimp set up 6 months ..yes i know beginners shrimp lol but gotta start somewhere..any who..I have been told that Iron silicate extreme abrasive blast sand blasting media can be used as a substrate..do you guys know if this is true? has anyone used it? many thanks..or any sugestion as to a dark/black substrate i can use in a new tank i want to set up