I have been using a mix with CHC and I have some how managed to rot all the roots...and that is with watering about once a week....not sure what is going on...not sure if a couple will make it. Some of my paph's are doing great in s/h and aren't...been thinking of getting away from paph's because they just don't seem happy with me....but I just can't seem to let go of my paph. lowii and I really want a paph. dianthum....they are just to amazing to say no too!