Orchid Food 19-31-17 is this good or bad?

[Myst]

hello there!
First time poster here and i just picked up some orchid food from the local grocery store its SCHULTZ orchid food 19-31-17.
I fed my plants (both Phalaenopsis) this morning before finding this forum and now I'm worried that its the wrong food and that i fed them at the wrong time of the day or when they should be dormant or <insert some orchid terminology here>
...well clearly i am out of my league and would like to start with just the basic information but there doesnt seem to be anything basic about my new and growing (pun intended) interest in Orchids.
So did i just unknowingly poison my plants with this 19-31-17 since the little searching i have done seemed to produce fertilizers with much lower ratios?