not sure if its the same name brand, but Menards sells black slag in 50 lb bags as well, at less than $10 a bag. not sure if they've opened their new stores in the detroit area yet? i've used it with all types of cichlids for several years, from fronts to tropheus to shell dwellers, plecos and syno's. i personally don't think it looks good by itself, but mix it with white sand and i think it looks great.