Epies Fertilized!

So I'm supposed to start fertilizing my epiphyllums in Feb with a low N, but high P fertilizer. I had none of that type of fertilizer and since I'm trying to go organic I decided to put bone meal into them instead and water with aquarium water to water it in. I wasn't able to put worm castings on unfortunately because I had just added some dry matter and mixed it all up and it needed more time to break down. Hopefully I will get some blooms this year now that I have some guidance!