Yes that is the same exact plantation soil - infact I got it from that shop (which is infact a reptile shop) but the sales men all said that it is ok for plants as well. The substrate we bought it from the same shop too but I'm not sure which one since it's been over a year. What i'm finding strange is that we had this terrarium for over a year now but this seems to be a recent problem. Actually yes I do have 2 plants which have brown tips - one of them is the one which has this white stuff all around it. Any idea what causes this please? Yes we do have this calcium problem with tap water - so you think it's because of the water we are using? Thank you