Fluval stratum that bad?
Was at my LFS today asking about their substrates for sale. The old man showed me two kinds he had (one of which was Fluval stratum). The Fluval stratum was actually more expensive than the other one....I think the other substrate was similar to a black fluorite.
Despite the stratum being more expensive he old man actually advised against it saying that stratum was clay-like and eventually with time w/ decentigrate into dust-like sized particles rendering it useless. And then the substrate will have to be completely replaced.
Can anyone comment on this? What other substrates will degenerate over time like this and which substrates keep it's integrity (as far as size of the particles)??