Hi, there.
Süsswassertang can be attached to rock via netting (loofah or hair netting works just fine), to wood with cotton thread or if you wish to do a carpet, it can be attached to stainless steel mesh. You could also do a Süsswassertang wall using either plastic or stainless steel mesh.
With regard to pronunciation, if you are pronouncing it the way you are spelling it, then I'm afraid you got it wrong. The capital "B" like character (ß) in Süßwassertang is actually pronounced as a soft\double "s" in German.
Süsswassertang can be attached to rock via netting (loofah or hair netting works just fine), to wood with cotton thread or if you wish to do a carpet, it can be attached to stainless steel mesh. You could also do a Süsswassertang wall using either plastic or stainless steel mesh.
With regard to pronunciation, if you are pronouncing it the way you are spelling it, then I'm afraid you got it wrong. The capital "B" like character (ß) in Süßwassertang is actually pronounced as a soft\double "s" in German.