I've been using K-like for a while, seems to work, but running low. I got it previously from FirstRay (who seems to know stuff about fertilizers) but he is no longer carrying it. Any other recommendations? Needs to be an RO-water formulation, and has to somehow dissolve in water (no slow release granules). Specialty formulations for Cattleya (or whatever) is not warranted either, as I grow pretty much only weird botanicals. I am using seaweed extract once in a while to supplement with further trace elements. Thanks for letting me know.