New Fluval Stratum Substrate?

I think it's similar to ADA Aquasoil, but when you compare prices/weight, it's cheaper to buy ADA.

For shrimp it's great, I put four CBS in there (S grade) and found four molts in the period of a week or two.

For plants I don't know, the plants seem fine but it's a shrimp tank and I don't have co2 (yet). Nothing's dying from transition which is always a plus.

I use it. Its awesome. I had some plants that were dying while in a holding tank (read: bucket) for over two weeks. Planted them in this substrate and with good light and Co2 they bounced back immediately. Excellent root growth...