I'm not sure what brand of epiphyte fertilizer your using, but I have used
Epiphyte's Delight in the past for Tillandsias (sp?). I think the
instructions were to use the Epiphyte's Delight or any normal plant
fertilizer at 1/4 strength, meaning that the Epiphyte's Delight was already
diluted in it's powedered form. If you use a fertilizer specially made for
epiphyte type plants it may be "ready made" for CP's that tolerate
fertilizing. While you should certainly start with a diluted solution, you
may be able to experiment a little and find that the CP's like the epiphyte
fertilizer full strength. Just a thought :-)
Regards,
John in Phoenix