My observation is that the hiding behavior coincides with predation attempts for the most part. in my tanks with no predators, the MTS's roam around at will day or not. in tanks with predators, they are almost purely noctournal.
Very few fish will do a good job of erradicating MTS's. They are well armored and have an Operculum (trapdoor) they really are a true survivor. Some cats will eat them whole and somehow digest the shells, Loaches will keep the population in check, but not kill them off in most cases. otherwise they tend to survive. MY Cichlids which are die hard snail hunters cannot touch the MTS's.
As said in the snail article. MTS's are a great benefit to a planted tank. I doubt they would eat plants at all unless they were completely starved, and that is hard to do in an active tank. Snails can and will live on bio-film only if that is all they have (I have proven this a couple of times) so It's unlikely that you'd ever see them eat plants.
Dave
Very few fish will do a good job of erradicating MTS's. They are well armored and have an Operculum (trapdoor) they really are a true survivor. Some cats will eat them whole and somehow digest the shells, Loaches will keep the population in check, but not kill them off in most cases. otherwise they tend to survive. MY Cichlids which are die hard snail hunters cannot touch the MTS's.
As said in the snail article. MTS's are a great benefit to a planted tank. I doubt they would eat plants at all unless they were completely starved, and that is hard to do in an active tank. Snails can and will live on bio-film only if that is all they have (I have proven this a couple of times) so It's unlikely that you'd ever see them eat plants.
Dave