Help! suicidal Zamioculcas

First, don't use home-made garden compost, and make sure that any commercial mixes you use don't have loam or peat in them. Then, make sure that the sand is a coarse, horticultural grit, rather than play sand, or something fine like that. Next, add a generous amount of pumice or volcanic cinders to increase the drainage and aeration further. Also, don't increase the size of the pot more than about 5 cm in diameter or height--too much unused potting compost is an open invitation to rot. If the roots or tubers are damaged at all in transplanting, you will need to apply a fungicide to prevent rot--they are very sensitive to root rot fungi! Pot up in barely damp mix, and leave dry for at least a week after repotting, to let any damage heal. Then you can water. We usually water once about every two to three months, here in the desert.

Well thats very informative. I have one too that looks great at the minute but the pot is starting to distort as the tubers develop. I was thinking of potting it on so thats great info on that Tug, thanks.