The Parvis are particularly insensitive to fertilizer. I've fert-burned a number of them. I leave them alone more than any other Paph section.

They tend to do well with no fert, but will allow occassional natural additives to their potting mixture. I'm not the most experienced with the voodoo recipes, so I'll leave that for others. I use very dilute fert and kelp extract every couple of months, and add crushed egg shells and epsom salts for calcium and magnesium.

McJulie