flowering nutes?

I havent been giving my plant any nutes
its aboout 3 or 4 weeks into flowering and i was wondering if i can start giving nutes to help bud production?
i have some orchid plant food its 19-31-17
i was wondering is this safe to put on my plant?
i know its a stupid question cuz it says orchids. but i was just wondering if it even matters cuz its food?
i dont wanna kill it!
heres the stuff i have

Schultz :: Orchid Food Water Soluble Plant Food - 10910

any advice would be great

yes.u shood of start givein it flower nutes once the calyxes start to develop. i usually give flower nutes couple days after they show sex and the tips git hairy

give it nutes right after you put it in to bloom

ok i know i should be giving it nute but orchid food is okay for the plant??
here are some pictures.
its stem is a bit thin, but other than that it seems pretty healthy.. i think its growing slowww as hell.
prob due to not enough light.. or the pot may be too small.
its prob like 3 foot something now. im 5'2 and its up to my waist high.
okay so i had a question for anyone who knows,
im new at this so just wondering if its normall.
some of the hairs on the plant are darker in color.. kinda turning brown or red.
is this normal? some are white like yellow and some are turning brownish.
take a look at the picturesss
thankss

at 4 weeks flowering yes thats prtty normal for the pistols on the preflower to turn brown first as they wer the first to appear.

okay so i gave it nutes once a day for 2 days and the third day just water..
i water it everyday because the soil gets dry fast.
anyways here are some pics.
oh and i got mixed up in my calander she is almost 5 weeks from 12/12 and 14 days from the time she showed hairs.
so yeah about 2 weeks into flowering.
today i noted there are buds forming!
hey ttake a look at the pics leme know what you think
should i keep giving it nutes? seems like its helped..

This may help: https://www.rollitup.org/marijuana-plant-problems/158144-never-ending-abuse-phosphorous-bloom.html

Good luck & good grow.....BB