Exo Terra terrariensand- the aquarium he makes trouble

When I bought this sand, he was also a suitable recommended for turtle tanks, so I've assumed that it would be suitable for aquaria. Unfortunately, this is not so. Not because of the plants plant as another review states grew very well for me, but I had after the Change to these sand over months mysterious fish kill, the first ground fish, then the other, one after another. Since they were habituated fish stocks, the problems previously lived in another aquarium, I can exclude each other safe germ incompatibilities of fish here.
Track Search forums meant that I heard from other aquarists problems with this ground.
So really only suitable for the terrarium. The sand itself is lackschwarz, fine, and beautiful, in the terrarium, I would use the sand as well.