I have a good infestation of MTS's in my tank with established glosso. I also need to clear out an area of glosso that is multilayered now and then, so I plant glosso "seedlings" in these areas and do not have a problem with the glosso staying rooted.
My guess would be that MTS's may disturb glosso depending on the size of the substrate. I use Eco-Complete.
75 gallon ph 6.8, Nitrate 5.0ppm, Phosphate .5ppm, Ammonia & Nitrites 0
GH & KH ~12 3wpg lighting