Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
I have only just started with STS, but have several tanks with Soil Master Select that have been going for several years, and a few tanks with Turface that are about 3 years old. I have moved some of these, and the substrate needs to be rinsed when it is disturbed that much. I have one each Turface and SMS that have not been moved, and these are just fine.
The particle size is not breaking down, and finally these materials stop removing the KH from the water.
While I know these are not exactly the same products, they are very similar so I would predict a good long life for STS whether it is kept in one set up, or if you take it down and reuse the material. It should hold up just fine.