Dynamite time release fertilizer when ands on what?

[Vanda lover]

I put a little sphahnum moss and some lumps of charcoal in the basket with my vanda. This keeps it from drying out so quickly, so I only have to water every 3rd day, but I have never had the nerve to put time release in with it. I figure that since I have to water often anyway, it's no bother to use the water soluble kind. It works fine for Vandas.