Some of the fancy-pants shrimp like CRS like low PH and special substrates like ADA Amazonia can help with this and your plants... but this isn't a requirement as far as I know for the shrimp you listed.
That's good to know! Thanks!i have used both tbm sand and eco complete and I think the eco complete grows plants better but the black sand is soooo purrrdy! The thing about black sand, for better or worse depending on your maintenance habits, is that poop is very noticeable, especially when I feed kens veggie sticks, the poop almost glows green :lipssealedsmilie: