After some days to the sowing, in two jar started to grow some few mildew, I eliminated them sterilizing whit some few drop of hydrogen peroxide and then removing the mildew spots with the tweezers, after two days in one of the jar there was alredy a bigger mildew spot, so I've alredy removed it using more hydrogen peroxide Now I think it would never re-form
However, the seeds looks like they're becoming green!