Quote Originally Posted by Mal420xl
well it could also be something leaching to the surface. i read somewhere about bloodmeal doing something like that. are they inside? i know how dry it is there, you may want to try a humidifier to see if you can keep them from drying so fast. the perlite should help it hold water too. is that soil from sedona? got a lot of red to it.
Great info Mal. I just want to add that perlite is used for drainage instead of retaining. For retaining water, vermiculite is what you will want to use.